aws-sdk-swf 0.24.0

AWS SDK for Amazon Simple Workflow Service
Documentation
// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.
/// Paginator for [`GetWorkflowExecutionHistory`](crate::operation::GetWorkflowExecutionHistory)
pub struct GetWorkflowExecutionHistoryPaginator {
    handle: std::sync::Arc<crate::client::Handle>,
    builder: crate::input::get_workflow_execution_history_input::Builder,
    stop_on_duplicate_token: bool,
}

impl GetWorkflowExecutionHistoryPaginator {
    /// Create a new paginator-wrapper
    pub(crate) fn new(
        handle: std::sync::Arc<crate::client::Handle>,
        builder: crate::input::get_workflow_execution_history_input::Builder,
    ) -> Self {
        Self {
            handle,
            builder,
            stop_on_duplicate_token: true,
        }
    }

    /// Set the page size
    ///
    /// _Note: this method will override any previously set value for `maximum_page_size`_
    pub fn page_size(mut self, limit: i32) -> Self {
        self.builder.maximum_page_size = Some(limit);
        self
    }

    /// Create a flattened paginator
    ///
    /// This paginator automatically flattens results using `events`. Queries to the underlying service
    /// are dispatched lazily.
    pub fn items(self) -> crate::paginator::GetWorkflowExecutionHistoryPaginatorItems {
        crate::paginator::GetWorkflowExecutionHistoryPaginatorItems(self)
    }

    /// Stop paginating when the service returns the same pagination token twice in a row.
    ///
    /// Defaults to true.
    ///
    /// For certain operations, it may be useful to continue on duplicate token. For example,
    /// if an operation is for tailing a log file in real-time, then continuing may be desired.
    /// This option can be set to `false` to accommodate these use cases.
    pub fn stop_on_duplicate_token(mut self, stop_on_duplicate_token: bool) -> Self {
        self.stop_on_duplicate_token = stop_on_duplicate_token;
        self
    }

    /// Create the pagination stream
    ///
    /// _Note:_ No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next)).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::output::GetWorkflowExecutionHistoryOutput,
            aws_smithy_http::result::SdkError<crate::error::GetWorkflowExecutionHistoryError>,
        >,
    > + Unpin {
        // Move individual fields out of self for the borrow checker
        let builder = self.builder;
        let handle = self.handle;
        aws_smithy_async::future::fn_stream::FnStream::new(move |tx| {
            Box::pin(async move {
                // Build the input for the first time. If required fields are missing, this is where we'll produce an early error.
                let mut input = match builder
                    .build()
                    .map_err(aws_smithy_http::result::SdkError::construction_failure)
                {
                    Ok(input) => input,
                    Err(e) => {
                        let _ = tx.send(Err(e)).await;
                        return;
                    }
                };
                loop {
                    let op = match input
                        .make_operation(&handle.conf)
                        .await
                        .map_err(aws_smithy_http::result::SdkError::construction_failure)
                    {
                        Ok(op) => op,
                        Err(e) => {
                            let _ = tx.send(Err(e)).await;
                            return;
                        }
                    };
                    let resp = handle.client.call(op).await;
                    // If the input member is None or it was an error
                    let done = match resp {
                        Ok(ref resp) => {
                            let new_token = crate::lens::reflens_structure_crate_output_get_workflow_execution_history_output_next_page_token(resp);
                            let is_empty = new_token.map(|token| token.is_empty()).unwrap_or(true);
                            if !is_empty
                                && new_token == input.next_page_token.as_ref()
                                && self.stop_on_duplicate_token
                            {
                                true
                            } else {
                                input.next_page_token = new_token.cloned();
                                is_empty
                            }
                        }
                        Err(_) => true,
                    };
                    if tx.send(resp).await.is_err() {
                        // receiving end was dropped
                        return;
                    }
                    if done {
                        return;
                    }
                }
            })
        })
    }
}

/// Paginator for [`ListActivityTypes`](crate::operation::ListActivityTypes)
pub struct ListActivityTypesPaginator {
    handle: std::sync::Arc<crate::client::Handle>,
    builder: crate::input::list_activity_types_input::Builder,
    stop_on_duplicate_token: bool,
}

impl ListActivityTypesPaginator {
    /// Create a new paginator-wrapper
    pub(crate) fn new(
        handle: std::sync::Arc<crate::client::Handle>,
        builder: crate::input::list_activity_types_input::Builder,
    ) -> Self {
        Self {
            handle,
            builder,
            stop_on_duplicate_token: true,
        }
    }

    /// Set the page size
    ///
    /// _Note: this method will override any previously set value for `maximum_page_size`_
    pub fn page_size(mut self, limit: i32) -> Self {
        self.builder.maximum_page_size = Some(limit);
        self
    }

    /// Create a flattened paginator
    ///
    /// This paginator automatically flattens results using `type_infos`. Queries to the underlying service
    /// are dispatched lazily.
    pub fn items(self) -> crate::paginator::ListActivityTypesPaginatorItems {
        crate::paginator::ListActivityTypesPaginatorItems(self)
    }

    /// Stop paginating when the service returns the same pagination token twice in a row.
    ///
    /// Defaults to true.
    ///
    /// For certain operations, it may be useful to continue on duplicate token. For example,
    /// if an operation is for tailing a log file in real-time, then continuing may be desired.
    /// This option can be set to `false` to accommodate these use cases.
    pub fn stop_on_duplicate_token(mut self, stop_on_duplicate_token: bool) -> Self {
        self.stop_on_duplicate_token = stop_on_duplicate_token;
        self
    }

    /// Create the pagination stream
    ///
    /// _Note:_ No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next)).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::output::ListActivityTypesOutput,
            aws_smithy_http::result::SdkError<crate::error::ListActivityTypesError>,
        >,
    > + Unpin {
        // Move individual fields out of self for the borrow checker
        let builder = self.builder;
        let handle = self.handle;
        aws_smithy_async::future::fn_stream::FnStream::new(move |tx| {
            Box::pin(async move {
                // Build the input for the first time. If required fields are missing, this is where we'll produce an early error.
                let mut input = match builder
                    .build()
                    .map_err(aws_smithy_http::result::SdkError::construction_failure)
                {
                    Ok(input) => input,
                    Err(e) => {
                        let _ = tx.send(Err(e)).await;
                        return;
                    }
                };
                loop {
                    let op = match input
                        .make_operation(&handle.conf)
                        .await
                        .map_err(aws_smithy_http::result::SdkError::construction_failure)
                    {
                        Ok(op) => op,
                        Err(e) => {
                            let _ = tx.send(Err(e)).await;
                            return;
                        }
                    };
                    let resp = handle.client.call(op).await;
                    // If the input member is None or it was an error
                    let done = match resp {
                        Ok(ref resp) => {
                            let new_token = crate::lens::reflens_structure_crate_output_list_activity_types_output_next_page_token(resp);
                            let is_empty = new_token.map(|token| token.is_empty()).unwrap_or(true);
                            if !is_empty
                                && new_token == input.next_page_token.as_ref()
                                && self.stop_on_duplicate_token
                            {
                                true
                            } else {
                                input.next_page_token = new_token.cloned();
                                is_empty
                            }
                        }
                        Err(_) => true,
                    };
                    if tx.send(resp).await.is_err() {
                        // receiving end was dropped
                        return;
                    }
                    if done {
                        return;
                    }
                }
            })
        })
    }
}

/// Paginator for [`ListClosedWorkflowExecutions`](crate::operation::ListClosedWorkflowExecutions)
pub struct ListClosedWorkflowExecutionsPaginator {
    handle: std::sync::Arc<crate::client::Handle>,
    builder: crate::input::list_closed_workflow_executions_input::Builder,
    stop_on_duplicate_token: bool,
}

impl ListClosedWorkflowExecutionsPaginator {
    /// Create a new paginator-wrapper
    pub(crate) fn new(
        handle: std::sync::Arc<crate::client::Handle>,
        builder: crate::input::list_closed_workflow_executions_input::Builder,
    ) -> Self {
        Self {
            handle,
            builder,
            stop_on_duplicate_token: true,
        }
    }

    /// Set the page size
    ///
    /// _Note: this method will override any previously set value for `maximum_page_size`_
    pub fn page_size(mut self, limit: i32) -> Self {
        self.builder.maximum_page_size = Some(limit);
        self
    }

    /// Create a flattened paginator
    ///
    /// This paginator automatically flattens results using `execution_infos`. Queries to the underlying service
    /// are dispatched lazily.
    pub fn items(self) -> crate::paginator::ListClosedWorkflowExecutionsPaginatorItems {
        crate::paginator::ListClosedWorkflowExecutionsPaginatorItems(self)
    }

    /// Stop paginating when the service returns the same pagination token twice in a row.
    ///
    /// Defaults to true.
    ///
    /// For certain operations, it may be useful to continue on duplicate token. For example,
    /// if an operation is for tailing a log file in real-time, then continuing may be desired.
    /// This option can be set to `false` to accommodate these use cases.
    pub fn stop_on_duplicate_token(mut self, stop_on_duplicate_token: bool) -> Self {
        self.stop_on_duplicate_token = stop_on_duplicate_token;
        self
    }

    /// Create the pagination stream
    ///
    /// _Note:_ No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next)).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::output::ListClosedWorkflowExecutionsOutput,
            aws_smithy_http::result::SdkError<crate::error::ListClosedWorkflowExecutionsError>,
        >,
    > + Unpin {
        // Move individual fields out of self for the borrow checker
        let builder = self.builder;
        let handle = self.handle;
        aws_smithy_async::future::fn_stream::FnStream::new(move |tx| {
            Box::pin(async move {
                // Build the input for the first time. If required fields are missing, this is where we'll produce an early error.
                let mut input = match builder
                    .build()
                    .map_err(aws_smithy_http::result::SdkError::construction_failure)
                {
                    Ok(input) => input,
                    Err(e) => {
                        let _ = tx.send(Err(e)).await;
                        return;
                    }
                };
                loop {
                    let op = match input
                        .make_operation(&handle.conf)
                        .await
                        .map_err(aws_smithy_http::result::SdkError::construction_failure)
                    {
                        Ok(op) => op,
                        Err(e) => {
                            let _ = tx.send(Err(e)).await;
                            return;
                        }
                    };
                    let resp = handle.client.call(op).await;
                    // If the input member is None or it was an error
                    let done = match resp {
                        Ok(ref resp) => {
                            let new_token = crate::lens::reflens_structure_crate_output_list_closed_workflow_executions_output_next_page_token(resp);
                            let is_empty = new_token.map(|token| token.is_empty()).unwrap_or(true);
                            if !is_empty
                                && new_token == input.next_page_token.as_ref()
                                && self.stop_on_duplicate_token
                            {
                                true
                            } else {
                                input.next_page_token = new_token.cloned();
                                is_empty
                            }
                        }
                        Err(_) => true,
                    };
                    if tx.send(resp).await.is_err() {
                        // receiving end was dropped
                        return;
                    }
                    if done {
                        return;
                    }
                }
            })
        })
    }
}

/// Paginator for [`ListDomains`](crate::operation::ListDomains)
pub struct ListDomainsPaginator {
    handle: std::sync::Arc<crate::client::Handle>,
    builder: crate::input::list_domains_input::Builder,
    stop_on_duplicate_token: bool,
}

impl ListDomainsPaginator {
    /// Create a new paginator-wrapper
    pub(crate) fn new(
        handle: std::sync::Arc<crate::client::Handle>,
        builder: crate::input::list_domains_input::Builder,
    ) -> Self {
        Self {
            handle,
            builder,
            stop_on_duplicate_token: true,
        }
    }

    /// Set the page size
    ///
    /// _Note: this method will override any previously set value for `maximum_page_size`_
    pub fn page_size(mut self, limit: i32) -> Self {
        self.builder.maximum_page_size = Some(limit);
        self
    }

    /// Create a flattened paginator
    ///
    /// This paginator automatically flattens results using `domain_infos`. Queries to the underlying service
    /// are dispatched lazily.
    pub fn items(self) -> crate::paginator::ListDomainsPaginatorItems {
        crate::paginator::ListDomainsPaginatorItems(self)
    }

    /// Stop paginating when the service returns the same pagination token twice in a row.
    ///
    /// Defaults to true.
    ///
    /// For certain operations, it may be useful to continue on duplicate token. For example,
    /// if an operation is for tailing a log file in real-time, then continuing may be desired.
    /// This option can be set to `false` to accommodate these use cases.
    pub fn stop_on_duplicate_token(mut self, stop_on_duplicate_token: bool) -> Self {
        self.stop_on_duplicate_token = stop_on_duplicate_token;
        self
    }

    /// Create the pagination stream
    ///
    /// _Note:_ No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next)).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::output::ListDomainsOutput,
            aws_smithy_http::result::SdkError<crate::error::ListDomainsError>,
        >,
    > + Unpin {
        // Move individual fields out of self for the borrow checker
        let builder = self.builder;
        let handle = self.handle;
        aws_smithy_async::future::fn_stream::FnStream::new(move |tx| {
            Box::pin(async move {
                // Build the input for the first time. If required fields are missing, this is where we'll produce an early error.
                let mut input = match builder
                    .build()
                    .map_err(aws_smithy_http::result::SdkError::construction_failure)
                {
                    Ok(input) => input,
                    Err(e) => {
                        let _ = tx.send(Err(e)).await;
                        return;
                    }
                };
                loop {
                    let op = match input
                        .make_operation(&handle.conf)
                        .await
                        .map_err(aws_smithy_http::result::SdkError::construction_failure)
                    {
                        Ok(op) => op,
                        Err(e) => {
                            let _ = tx.send(Err(e)).await;
                            return;
                        }
                    };
                    let resp = handle.client.call(op).await;
                    // If the input member is None or it was an error
                    let done = match resp {
                        Ok(ref resp) => {
                            let new_token = crate::lens::reflens_structure_crate_output_list_domains_output_next_page_token(resp);
                            let is_empty = new_token.map(|token| token.is_empty()).unwrap_or(true);
                            if !is_empty
                                && new_token == input.next_page_token.as_ref()
                                && self.stop_on_duplicate_token
                            {
                                true
                            } else {
                                input.next_page_token = new_token.cloned();
                                is_empty
                            }
                        }
                        Err(_) => true,
                    };
                    if tx.send(resp).await.is_err() {
                        // receiving end was dropped
                        return;
                    }
                    if done {
                        return;
                    }
                }
            })
        })
    }
}

/// Paginator for [`ListOpenWorkflowExecutions`](crate::operation::ListOpenWorkflowExecutions)
pub struct ListOpenWorkflowExecutionsPaginator {
    handle: std::sync::Arc<crate::client::Handle>,
    builder: crate::input::list_open_workflow_executions_input::Builder,
    stop_on_duplicate_token: bool,
}

impl ListOpenWorkflowExecutionsPaginator {
    /// Create a new paginator-wrapper
    pub(crate) fn new(
        handle: std::sync::Arc<crate::client::Handle>,
        builder: crate::input::list_open_workflow_executions_input::Builder,
    ) -> Self {
        Self {
            handle,
            builder,
            stop_on_duplicate_token: true,
        }
    }

    /// Set the page size
    ///
    /// _Note: this method will override any previously set value for `maximum_page_size`_
    pub fn page_size(mut self, limit: i32) -> Self {
        self.builder.maximum_page_size = Some(limit);
        self
    }

    /// Create a flattened paginator
    ///
    /// This paginator automatically flattens results using `execution_infos`. Queries to the underlying service
    /// are dispatched lazily.
    pub fn items(self) -> crate::paginator::ListOpenWorkflowExecutionsPaginatorItems {
        crate::paginator::ListOpenWorkflowExecutionsPaginatorItems(self)
    }

    /// Stop paginating when the service returns the same pagination token twice in a row.
    ///
    /// Defaults to true.
    ///
    /// For certain operations, it may be useful to continue on duplicate token. For example,
    /// if an operation is for tailing a log file in real-time, then continuing may be desired.
    /// This option can be set to `false` to accommodate these use cases.
    pub fn stop_on_duplicate_token(mut self, stop_on_duplicate_token: bool) -> Self {
        self.stop_on_duplicate_token = stop_on_duplicate_token;
        self
    }

    /// Create the pagination stream
    ///
    /// _Note:_ No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next)).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::output::ListOpenWorkflowExecutionsOutput,
            aws_smithy_http::result::SdkError<crate::error::ListOpenWorkflowExecutionsError>,
        >,
    > + Unpin {
        // Move individual fields out of self for the borrow checker
        let builder = self.builder;
        let handle = self.handle;
        aws_smithy_async::future::fn_stream::FnStream::new(move |tx| {
            Box::pin(async move {
                // Build the input for the first time. If required fields are missing, this is where we'll produce an early error.
                let mut input = match builder
                    .build()
                    .map_err(aws_smithy_http::result::SdkError::construction_failure)
                {
                    Ok(input) => input,
                    Err(e) => {
                        let _ = tx.send(Err(e)).await;
                        return;
                    }
                };
                loop {
                    let op = match input
                        .make_operation(&handle.conf)
                        .await
                        .map_err(aws_smithy_http::result::SdkError::construction_failure)
                    {
                        Ok(op) => op,
                        Err(e) => {
                            let _ = tx.send(Err(e)).await;
                            return;
                        }
                    };
                    let resp = handle.client.call(op).await;
                    // If the input member is None or it was an error
                    let done = match resp {
                        Ok(ref resp) => {
                            let new_token = crate::lens::reflens_structure_crate_output_list_open_workflow_executions_output_next_page_token(resp);
                            let is_empty = new_token.map(|token| token.is_empty()).unwrap_or(true);
                            if !is_empty
                                && new_token == input.next_page_token.as_ref()
                                && self.stop_on_duplicate_token
                            {
                                true
                            } else {
                                input.next_page_token = new_token.cloned();
                                is_empty
                            }
                        }
                        Err(_) => true,
                    };
                    if tx.send(resp).await.is_err() {
                        // receiving end was dropped
                        return;
                    }
                    if done {
                        return;
                    }
                }
            })
        })
    }
}

/// Paginator for [`ListWorkflowTypes`](crate::operation::ListWorkflowTypes)
pub struct ListWorkflowTypesPaginator {
    handle: std::sync::Arc<crate::client::Handle>,
    builder: crate::input::list_workflow_types_input::Builder,
    stop_on_duplicate_token: bool,
}

impl ListWorkflowTypesPaginator {
    /// Create a new paginator-wrapper
    pub(crate) fn new(
        handle: std::sync::Arc<crate::client::Handle>,
        builder: crate::input::list_workflow_types_input::Builder,
    ) -> Self {
        Self {
            handle,
            builder,
            stop_on_duplicate_token: true,
        }
    }

    /// Set the page size
    ///
    /// _Note: this method will override any previously set value for `maximum_page_size`_
    pub fn page_size(mut self, limit: i32) -> Self {
        self.builder.maximum_page_size = Some(limit);
        self
    }

    /// Create a flattened paginator
    ///
    /// This paginator automatically flattens results using `type_infos`. Queries to the underlying service
    /// are dispatched lazily.
    pub fn items(self) -> crate::paginator::ListWorkflowTypesPaginatorItems {
        crate::paginator::ListWorkflowTypesPaginatorItems(self)
    }

    /// Stop paginating when the service returns the same pagination token twice in a row.
    ///
    /// Defaults to true.
    ///
    /// For certain operations, it may be useful to continue on duplicate token. For example,
    /// if an operation is for tailing a log file in real-time, then continuing may be desired.
    /// This option can be set to `false` to accommodate these use cases.
    pub fn stop_on_duplicate_token(mut self, stop_on_duplicate_token: bool) -> Self {
        self.stop_on_duplicate_token = stop_on_duplicate_token;
        self
    }

    /// Create the pagination stream
    ///
    /// _Note:_ No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next)).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::output::ListWorkflowTypesOutput,
            aws_smithy_http::result::SdkError<crate::error::ListWorkflowTypesError>,
        >,
    > + Unpin {
        // Move individual fields out of self for the borrow checker
        let builder = self.builder;
        let handle = self.handle;
        aws_smithy_async::future::fn_stream::FnStream::new(move |tx| {
            Box::pin(async move {
                // Build the input for the first time. If required fields are missing, this is where we'll produce an early error.
                let mut input = match builder
                    .build()
                    .map_err(aws_smithy_http::result::SdkError::construction_failure)
                {
                    Ok(input) => input,
                    Err(e) => {
                        let _ = tx.send(Err(e)).await;
                        return;
                    }
                };
                loop {
                    let op = match input
                        .make_operation(&handle.conf)
                        .await
                        .map_err(aws_smithy_http::result::SdkError::construction_failure)
                    {
                        Ok(op) => op,
                        Err(e) => {
                            let _ = tx.send(Err(e)).await;
                            return;
                        }
                    };
                    let resp = handle.client.call(op).await;
                    // If the input member is None or it was an error
                    let done = match resp {
                        Ok(ref resp) => {
                            let new_token = crate::lens::reflens_structure_crate_output_list_workflow_types_output_next_page_token(resp);
                            let is_empty = new_token.map(|token| token.is_empty()).unwrap_or(true);
                            if !is_empty
                                && new_token == input.next_page_token.as_ref()
                                && self.stop_on_duplicate_token
                            {
                                true
                            } else {
                                input.next_page_token = new_token.cloned();
                                is_empty
                            }
                        }
                        Err(_) => true,
                    };
                    if tx.send(resp).await.is_err() {
                        // receiving end was dropped
                        return;
                    }
                    if done {
                        return;
                    }
                }
            })
        })
    }
}

/// Paginator for [`PollForDecisionTask`](crate::operation::PollForDecisionTask)
pub struct PollForDecisionTaskPaginator {
    handle: std::sync::Arc<crate::client::Handle>,
    builder: crate::input::poll_for_decision_task_input::Builder,
    stop_on_duplicate_token: bool,
}

impl PollForDecisionTaskPaginator {
    /// Create a new paginator-wrapper
    pub(crate) fn new(
        handle: std::sync::Arc<crate::client::Handle>,
        builder: crate::input::poll_for_decision_task_input::Builder,
    ) -> Self {
        Self {
            handle,
            builder,
            stop_on_duplicate_token: true,
        }
    }

    /// Set the page size
    ///
    /// _Note: this method will override any previously set value for `maximum_page_size`_
    pub fn page_size(mut self, limit: i32) -> Self {
        self.builder.maximum_page_size = Some(limit);
        self
    }

    /// Create a flattened paginator
    ///
    /// This paginator automatically flattens results using `events`. Queries to the underlying service
    /// are dispatched lazily.
    pub fn items(self) -> crate::paginator::PollForDecisionTaskPaginatorItems {
        crate::paginator::PollForDecisionTaskPaginatorItems(self)
    }

    /// Stop paginating when the service returns the same pagination token twice in a row.
    ///
    /// Defaults to true.
    ///
    /// For certain operations, it may be useful to continue on duplicate token. For example,
    /// if an operation is for tailing a log file in real-time, then continuing may be desired.
    /// This option can be set to `false` to accommodate these use cases.
    pub fn stop_on_duplicate_token(mut self, stop_on_duplicate_token: bool) -> Self {
        self.stop_on_duplicate_token = stop_on_duplicate_token;
        self
    }

    /// Create the pagination stream
    ///
    /// _Note:_ No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next)).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::output::PollForDecisionTaskOutput,
            aws_smithy_http::result::SdkError<crate::error::PollForDecisionTaskError>,
        >,
    > + Unpin {
        // Move individual fields out of self for the borrow checker
        let builder = self.builder;
        let handle = self.handle;
        aws_smithy_async::future::fn_stream::FnStream::new(move |tx| {
            Box::pin(async move {
                // Build the input for the first time. If required fields are missing, this is where we'll produce an early error.
                let mut input = match builder
                    .build()
                    .map_err(aws_smithy_http::result::SdkError::construction_failure)
                {
                    Ok(input) => input,
                    Err(e) => {
                        let _ = tx.send(Err(e)).await;
                        return;
                    }
                };
                loop {
                    let op = match input
                        .make_operation(&handle.conf)
                        .await
                        .map_err(aws_smithy_http::result::SdkError::construction_failure)
                    {
                        Ok(op) => op,
                        Err(e) => {
                            let _ = tx.send(Err(e)).await;
                            return;
                        }
                    };
                    let resp = handle.client.call(op).await;
                    // If the input member is None or it was an error
                    let done = match resp {
                        Ok(ref resp) => {
                            let new_token = crate::lens::reflens_structure_crate_output_poll_for_decision_task_output_next_page_token(resp);
                            let is_empty = new_token.map(|token| token.is_empty()).unwrap_or(true);
                            if !is_empty
                                && new_token == input.next_page_token.as_ref()
                                && self.stop_on_duplicate_token
                            {
                                true
                            } else {
                                input.next_page_token = new_token.cloned();
                                is_empty
                            }
                        }
                        Err(_) => true,
                    };
                    if tx.send(resp).await.is_err() {
                        // receiving end was dropped
                        return;
                    }
                    if done {
                        return;
                    }
                }
            })
        })
    }
}

/// Flattened paginator for `GetWorkflowExecutionHistoryPaginator`
///
/// This is created with [`.items()`](GetWorkflowExecutionHistoryPaginator::items)
pub struct GetWorkflowExecutionHistoryPaginatorItems(GetWorkflowExecutionHistoryPaginator);

impl GetWorkflowExecutionHistoryPaginatorItems {
    /// Create the pagination stream
    ///
    /// _Note: No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next))._
    ///
    /// To read the entirety of the paginator, use [`.collect::<Result<Vec<_>, _>()`](tokio_stream::StreamExt::collect).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::model::HistoryEvent,
            aws_smithy_http::result::SdkError<crate::error::GetWorkflowExecutionHistoryError>,
        >,
    > + Unpin {
        aws_smithy_async::future::fn_stream::TryFlatMap::new(self.0.send()).flat_map(|page| {
            crate::lens::lens_structure_crate_output_get_workflow_execution_history_output_events(
                page,
            )
            .unwrap_or_default()
            .into_iter()
        })
    }
}

/// Flattened paginator for `ListActivityTypesPaginator`
///
/// This is created with [`.items()`](ListActivityTypesPaginator::items)
pub struct ListActivityTypesPaginatorItems(ListActivityTypesPaginator);

impl ListActivityTypesPaginatorItems {
    /// Create the pagination stream
    ///
    /// _Note: No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next))._
    ///
    /// To read the entirety of the paginator, use [`.collect::<Result<Vec<_>, _>()`](tokio_stream::StreamExt::collect).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::model::ActivityTypeInfo,
            aws_smithy_http::result::SdkError<crate::error::ListActivityTypesError>,
        >,
    > + Unpin {
        aws_smithy_async::future::fn_stream::TryFlatMap::new(self.0.send()).flat_map(|page| {
            crate::lens::lens_structure_crate_output_list_activity_types_output_type_infos(page)
                .unwrap_or_default()
                .into_iter()
        })
    }
}

/// Flattened paginator for `ListClosedWorkflowExecutionsPaginator`
///
/// This is created with [`.items()`](ListClosedWorkflowExecutionsPaginator::items)
pub struct ListClosedWorkflowExecutionsPaginatorItems(ListClosedWorkflowExecutionsPaginator);

impl ListClosedWorkflowExecutionsPaginatorItems {
    /// Create the pagination stream
    ///
    /// _Note: No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next))._
    ///
    /// To read the entirety of the paginator, use [`.collect::<Result<Vec<_>, _>()`](tokio_stream::StreamExt::collect).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::model::WorkflowExecutionInfo,
            aws_smithy_http::result::SdkError<crate::error::ListClosedWorkflowExecutionsError>,
        >,
    > + Unpin {
        aws_smithy_async::future::fn_stream::TryFlatMap::new(self.0.send()).flat_map(|page| crate::lens::lens_structure_crate_output_list_closed_workflow_executions_output_execution_infos(page).unwrap_or_default().into_iter())
    }
}

/// Flattened paginator for `ListDomainsPaginator`
///
/// This is created with [`.items()`](ListDomainsPaginator::items)
pub struct ListDomainsPaginatorItems(ListDomainsPaginator);

impl ListDomainsPaginatorItems {
    /// Create the pagination stream
    ///
    /// _Note: No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next))._
    ///
    /// To read the entirety of the paginator, use [`.collect::<Result<Vec<_>, _>()`](tokio_stream::StreamExt::collect).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::model::DomainInfo,
            aws_smithy_http::result::SdkError<crate::error::ListDomainsError>,
        >,
    > + Unpin {
        aws_smithy_async::future::fn_stream::TryFlatMap::new(self.0.send()).flat_map(|page| {
            crate::lens::lens_structure_crate_output_list_domains_output_domain_infos(page)
                .unwrap_or_default()
                .into_iter()
        })
    }
}

/// Flattened paginator for `ListOpenWorkflowExecutionsPaginator`
///
/// This is created with [`.items()`](ListOpenWorkflowExecutionsPaginator::items)
pub struct ListOpenWorkflowExecutionsPaginatorItems(ListOpenWorkflowExecutionsPaginator);

impl ListOpenWorkflowExecutionsPaginatorItems {
    /// Create the pagination stream
    ///
    /// _Note: No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next))._
    ///
    /// To read the entirety of the paginator, use [`.collect::<Result<Vec<_>, _>()`](tokio_stream::StreamExt::collect).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::model::WorkflowExecutionInfo,
            aws_smithy_http::result::SdkError<crate::error::ListOpenWorkflowExecutionsError>,
        >,
    > + Unpin {
        aws_smithy_async::future::fn_stream::TryFlatMap::new(self.0.send()).flat_map(|page| crate::lens::lens_structure_crate_output_list_open_workflow_executions_output_execution_infos(page).unwrap_or_default().into_iter())
    }
}

/// Flattened paginator for `ListWorkflowTypesPaginator`
///
/// This is created with [`.items()`](ListWorkflowTypesPaginator::items)
pub struct ListWorkflowTypesPaginatorItems(ListWorkflowTypesPaginator);

impl ListWorkflowTypesPaginatorItems {
    /// Create the pagination stream
    ///
    /// _Note: No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next))._
    ///
    /// To read the entirety of the paginator, use [`.collect::<Result<Vec<_>, _>()`](tokio_stream::StreamExt::collect).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::model::WorkflowTypeInfo,
            aws_smithy_http::result::SdkError<crate::error::ListWorkflowTypesError>,
        >,
    > + Unpin {
        aws_smithy_async::future::fn_stream::TryFlatMap::new(self.0.send()).flat_map(|page| {
            crate::lens::lens_structure_crate_output_list_workflow_types_output_type_infos(page)
                .unwrap_or_default()
                .into_iter()
        })
    }
}

/// Flattened paginator for `PollForDecisionTaskPaginator`
///
/// This is created with [`.items()`](PollForDecisionTaskPaginator::items)
pub struct PollForDecisionTaskPaginatorItems(PollForDecisionTaskPaginator);

impl PollForDecisionTaskPaginatorItems {
    /// Create the pagination stream
    ///
    /// _Note: No requests will be dispatched until the stream is used (eg. with [`.next().await`](tokio_stream::StreamExt::next))._
    ///
    /// To read the entirety of the paginator, use [`.collect::<Result<Vec<_>, _>()`](tokio_stream::StreamExt::collect).
    pub fn send(
        self,
    ) -> impl tokio_stream::Stream<
        Item = std::result::Result<
            crate::model::HistoryEvent,
            aws_smithy_http::result::SdkError<crate::error::PollForDecisionTaskError>,
        >,
    > + Unpin {
        aws_smithy_async::future::fn_stream::TryFlatMap::new(self.0.send()).flat_map(|page| {
            crate::lens::lens_structure_crate_output_poll_for_decision_task_output_events(page)
                .unwrap_or_default()
                .into_iter()
        })
    }
}