Struct amadeus::par_stream::FlatMap

#[must_use]pub struct FlatMap<I, F> { /* fields omitted */ }

Implementations

impl<I, F> FlatMap<I, F>

pub fn new(i: I, f: F) -> FlatMap<I, F>

Constructs a new FlatMap.

Trait Implementations

impl<I, F, R, Source> DistributedPipe<Source> for FlatMap<I, F> where
    F: FnMut(<I as DistributedPipe<Source>>::Item) -> R + Clone + ProcessSend + 'static,
    I: DistributedPipe<Source>,
    R: Stream, 

type Item = <R as Stream>::Item

type Task = FlatMapTask<<I as DistributedPipe<Source>>::Task, F>

fn task(&self) -> <FlatMap<I, F> as DistributedPipe<Source>>::Task

fn inspect<F>(self, f: F) -> Inspect<Self, F> where
    F: FnMut(&Self::Item) + Clone + ProcessSend + 'static, 

fn update<F>(self, f: F) -> Update<Self, F> where
    F: FnMut(&mut Self::Item) + Clone + ProcessSend + 'static, 

fn map<B, F>(self, f: F) -> Map<Self, F> where
    F: FnMut(Self::Item) -> B + Clone + ProcessSend + 'static, 

fn flat_map<B, F>(self, f: F) -> FlatMap<Self, F> where
    B: Stream,
    F: FnMut(Self::Item) -> B + Clone + ProcessSend + 'static, 

fn filter<F, Fut>(self, f: F) -> Filter<Self, F> where
    F: FnMut(&Self::Item) -> Fut + Clone + ProcessSend + 'static,
    Fut: Future<Output = bool>, 

fn cloned<'a, T>(self) -> Cloned<Self, T, Source> where
    Self: DistributedPipe<&'a Source, Item = &'a T>,
    Source: 'a,
    T: Clone + 'a, 

fn pipe<S>(self, sink: S) -> Pipe<Self, S> where
    S: DistributedSink<Self::Item>, 

fn for_each<F>(self, f: F) -> ForEach<Self, F> where
    F: FnMut(Self::Item) + Clone + ProcessSend + 'static, 

fn fold<ID, F, B>(self, identity: ID, op: F) -> Fold<Self, ID, F, B> where
    B: ProcessSend + 'static,
    F: FnMut(B, Either<Self::Item, B>) -> B + Clone + ProcessSend + 'static,
    ID: FnMut() -> B + Clone + ProcessSend + 'static, 

fn group_by<A, B, ID, F, C>(
    self,
    identity: ID,
    op: F
) -> GroupBy<Self, ID, F, C> where
    A: Eq + Hash + ProcessSend + 'static,
    C: ProcessSend + 'static,
    F: FnMut(C, Either<B, C>) -> C + Clone + ProcessSend + 'static,
    ID: FnMut() -> C + Clone + ProcessSend + 'static,
    Self: DistributedPipe<Source, Item = (A, B)>, 

fn histogram(self) -> Histogram<Self> where
    Self::Item: Hash,
    Self::Item: Ord,
    Self::Item: ProcessSend,
    Self::Item: 'static, 

fn count(self) -> Count<Self>

fn sum<B>(self) -> Sum<Self, B> where
    B: Sum<Self::Item> + Sum<B> + ProcessSend + 'static, 

fn combine<F>(self, f: F) -> Combine<Self, F> where
    F: FnMut(Self::Item, Self::Item) -> Self::Item + Clone + ProcessSend + 'static,
    Self::Item: ProcessSend,
    Self::Item: 'static, 

fn max(self) -> Max<Self> where
    Self::Item: Ord,
    Self::Item: ProcessSend,
    Self::Item: 'static, 

fn max_by<F>(self, f: F) -> MaxBy<Self, F> where
    F: FnMut(&Self::Item, &Self::Item) -> Ordering + Clone + ProcessSend + 'static,
    Self::Item: ProcessSend,
    Self::Item: 'static, 

fn max_by_key<F, B>(self, f: F) -> MaxByKey<Self, F> where
    B: Ord + 'static,
    F: FnMut(&Self::Item) -> B + Clone + ProcessSend + 'static,
    Self::Item: ProcessSend,
    Self::Item: 'static, 

fn min(self) -> Min<Self> where
    Self::Item: Ord,
    Self::Item: ProcessSend,
    Self::Item: 'static, 

fn min_by<F>(self, f: F) -> MinBy<Self, F> where
    F: FnMut(&Self::Item, &Self::Item) -> Ordering + Clone + ProcessSend + 'static,
    Self::Item: ProcessSend,
    Self::Item: 'static, 

fn min_by_key<F, B>(self, f: F) -> MinByKey<Self, F> where
    B: Ord + 'static,
    F: FnMut(&Self::Item) -> B + Clone + ProcessSend + 'static,
    Self::Item: ProcessSend,
    Self::Item: 'static, 

fn most_frequent(
    self,
    n: usize,
    probability: f64,
    tolerance: f64
) -> MostFrequent<Self> where
    Self::Item: Hash,
    Self::Item: Eq,
    Self::Item: Clone,
    Self::Item: ProcessSend,
    Self::Item: 'static, 

fn most_distinct<A, B>(
    self,
    n: usize,
    probability: f64,
    tolerance: f64,
    error_rate: f64
) -> MostDistinct<Self> where
    A: Hash + Eq + Clone + ProcessSend + 'static,
    B: Hash + 'static,
    Self: DistributedPipe<Source, Item = (A, B)>, 

fn sample_unstable(self, samples: usize) -> SampleUnstable<Self> where
    Self::Item: ProcessSend,
    Self::Item: 'static, 

fn all<F>(self, f: F) -> All<Self, F> where
    F: FnMut(Self::Item) -> bool + Clone + ProcessSend + 'static, 

fn any<F>(self, f: F) -> Any<Self, F> where
    F: FnMut(Self::Item) -> bool + Clone + ProcessSend + 'static, 

fn collect<B>(self) -> Collect<Self, B> where
    B: FromDistributedStream<Self::Item>, 

impl<I, F, R> DistributedStream for FlatMap<I, F> where
    F: FnMut(<I as DistributedStream>::Item) -> R + Clone + ProcessSend + 'static,
    I: DistributedStream,
    R: Stream, 

type Item = <R as Stream>::Item

type Task = FlatMapTask<<I as DistributedStream>::Task, F>

fn size_hint(&self) -> (usize, Option<usize>)

fn next_task(&mut self) -> Option<<FlatMap<I, F> as DistributedStream>::Task>

fn inspect<F>(self, f: F) -> Inspect<Self, F> where
    F: FnMut(&Self::Item) + Clone + ProcessSend + 'static, 

fn update<F>(self, f: F) -> Update<Self, F> where
    F: FnMut(&mut Self::Item) + Clone + ProcessSend + 'static, 

fn map<B, F>(self, f: F) -> Map<Self, F> where
    F: FnMut(Self::Item) -> B + Clone + ProcessSend + 'static, 

fn flat_map<B, F>(self, f: F) -> FlatMap<Self, F> where
    B: Stream,
    F: FnMut(Self::Item) -> B + Clone + ProcessSend + 'static, 

fn filter<F, Fut>(self, f: F) -> Filter<Self, F> where
    F: FnMut(&Self::Item) -> Fut + Clone + ProcessSend + 'static,
    Fut: Future<Output = bool>, 

fn chain<C>(
    self,
    chain: C
) -> Chain<Self, <C as IntoDistributedStream>::DistStream> where
    C: IntoDistributedStream<Item = Self::Item>, 

#[must_use]fn reduce<'life0, 'async_trait, P, B, R1F, R2F, R1, R2, R3>(
    self,
    pool: &'life0 P,
    reduce_a_factory: R1F,
    reduce_b_factory: R2F,
    reduce_c: R3
) -> Pin<Box<dyn Future<Output = B> + 'async_trait>> where
    'life0: 'async_trait,
    B: 'async_trait,
    P: ProcessPool + 'async_trait,
    R1: ReducerSend<Item = Self::Item> + Send + 'static + 'async_trait,
    R1F: Factory<Item = R1> + Clone + ProcessSend + 'static + 'async_trait,
    R2: ReducerProcessSend<Item = <R1 as Reducer>::Output> + ProcessSend + 'static + 'async_trait,
    R2F: Factory<Item = R2> + 'async_trait,
    R3: Reducer<Item = <R2 as ReducerProcessSend>::Output, Output = B> + 'async_trait,
    Self: 'async_trait,
    Self::Task: 'static, 

#[must_use]fn pipe<'life0, 'async_trait, P, DistSink, A>(
    self,
    pool: &'life0 P,
    sink: DistSink
) -> Pin<Box<dyn Future<Output = A> + 'async_trait>> where
    'life0: 'async_trait,
    A: 'async_trait,
    DistSink: DistributedSink<Self::Item, Output = A> + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    <<DistSink as DistributedSink<Self::Item>>::Pipe as DistributedPipe<Self::Item>>::Task: 'static,
    <DistSink as DistributedSink<Self::Item>>::ReduceAFactory: 'static,
    <DistSink as DistributedSink<Self::Item>>::ReduceA: 'static,
    <DistSink as DistributedSink<Self::Item>>::ReduceB: 'static,
    Self::Task: 'static, 

#[must_use]fn fork<'life0, 'async_trait, P, DistSinkA, DistSinkB, A, B>(
    self,
    pool: &'life0 P,
    sink_a: DistSinkA,
    sink_b: DistSinkB
) -> Pin<Box<dyn Future<Output = (A, B)> + 'async_trait>> where
    'life0: 'async_trait,
    A: 'async_trait,
    B: 'async_trait,
    DistSinkA: DistributedSink<Self::Item, Output = A> + 'async_trait,
    DistSinkB: for<'a> DistributedSink<&'a Self::Item, Output = B> + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    <<DistSinkA as DistributedSink<Self::Item>>::Pipe as DistributedPipe<Self::Item>>::Task: 'static,
    <DistSinkA as DistributedSink<Self::Item>>::ReduceAFactory: 'static,
    <DistSinkA as DistributedSink<Self::Item>>::ReduceA: 'static,
    <DistSinkA as DistributedSink<Self::Item>>::ReduceB: 'static,
    <DistSinkB as DistributedSink<&'static Self::Item>>::ReduceAFactory: 'static,
    <DistSinkB as DistributedSink<&'static Self::Item>>::ReduceA: 'static,
    <DistSinkB as DistributedSink<&'static Self::Item>>::ReduceB: 'static,
    <<DistSinkB as DistributedSink<&'static Self::Item>>::Pipe as DistributedPipe<&'static Self::Item>>::Task: 'static,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn for_each<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = ()> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(Self::Item) + Clone + ProcessSend + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn fold<'life0, 'async_trait, P, ID, F, B>(
    self,
    pool: &'life0 P,
    identity: ID,
    op: F
) -> Pin<Box<dyn Future<Output = B> + 'async_trait>> where
    'life0: 'async_trait,
    B: ProcessSend + 'static + 'async_trait,
    F: FnMut(B, Either<Self::Item, B>) -> B + Clone + ProcessSend + 'static + 'async_trait,
    ID: FnMut() -> B + Clone + ProcessSend + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn group_by<'life0, 'async_trait, P, A, B, ID, F, C>(
    self,
    pool: &'life0 P,
    identity: ID,
    op: F
) -> Pin<Box<dyn Future<Output = HashMap<A, C, RandomState>> + 'async_trait>> where
    'life0: 'async_trait,
    A: Eq + Hash + ProcessSend + 'static + 'async_trait,
    B: 'static + 'async_trait,
    C: ProcessSend + 'static + 'async_trait,
    F: FnMut(C, Either<B, C>) -> C + Clone + ProcessSend + 'static + 'async_trait,
    ID: FnMut() -> C + Clone + ProcessSend + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: DistributedStream<Item = (A, B)> + 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn histogram<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = Vec<(Self::Item, usize)>> + 'async_trait>> where
    'life0: 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Hash,
    Self::Item: Ord,
    Self::Item: ProcessSend,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn count<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = usize> + 'async_trait>> where
    'life0: 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn sum<'life0, 'async_trait, P, S>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = S> + 'async_trait>> where
    'life0: 'async_trait,
    P: ProcessPool + 'async_trait,
    S: Sum<Self::Item> + Sum<S> + ProcessSend + 'static + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn combine<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(Self::Item, Self::Item) -> Self::Item + Clone + ProcessSend + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: ProcessSend,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn max<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Ord,
    Self::Item: ProcessSend,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn max_by<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(&Self::Item, &Self::Item) -> Ordering + Clone + ProcessSend + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: ProcessSend,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn max_by_key<'life0, 'async_trait, P, F, B>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    B: Ord + 'static + 'async_trait,
    F: FnMut(&Self::Item) -> B + Clone + ProcessSend + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: ProcessSend,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn min<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Ord,
    Self::Item: ProcessSend,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn min_by<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(&Self::Item, &Self::Item) -> Ordering + Clone + ProcessSend + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: ProcessSend,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn min_by_key<'life0, 'async_trait, P, F, B>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    B: Ord + 'static + 'async_trait,
    F: FnMut(&Self::Item) -> B + Clone + ProcessSend + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: ProcessSend,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn most_frequent<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P,
    n: usize,
    probability: f64,
    tolerance: f64
) -> Pin<Box<dyn Future<Output = Top<Self::Item, usize>> + 'async_trait>> where
    'life0: 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Hash,
    Self::Item: Eq,
    Self::Item: Clone,
    Self::Item: ProcessSend,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn most_distinct<'life0, 'async_trait, P, A, B>(
    self,
    pool: &'life0 P,
    n: usize,
    probability: f64,
    tolerance: f64,
    error_rate: f64
) -> Pin<Box<dyn Future<Output = Top<A, HyperLogLogMagnitude<B>>> + 'async_trait>> where
    'life0: 'async_trait,
    A: Hash + Eq + Clone + ProcessSend + 'static + 'async_trait,
    B: Hash + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: DistributedStream<Item = (A, B)> + 'async_trait,
    Self::Task: 'static, 

#[must_use]fn sample_unstable<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P,
    samples: usize
) -> Pin<Box<dyn Future<Output = SampleUnstable<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: ProcessSend,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn all<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = bool> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(Self::Item) -> bool + Clone + ProcessSend + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn any<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = bool> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(Self::Item) -> bool + Clone + ProcessSend + 'static + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn collect<'life0, 'async_trait, P, B>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = B> + 'async_trait>> where
    'life0: 'async_trait,
    B: FromDistributedStream<Self::Item> + 'async_trait,
    P: ProcessPool + 'async_trait,
    Self: 'async_trait,
    <B as FromDistributedStream<Self::Item>>::ReduceAFactory: ProcessSend,
    <B as FromDistributedStream<Self::Item>>::ReduceAFactory: 'static,
    <B as FromDistributedStream<Self::Item>>::ReduceA: ProcessSend,
    <B as FromDistributedStream<Self::Item>>::ReduceA: 'static,
    <B as FromDistributedStream<Self::Item>>::ReduceB: ProcessSend,
    <B as FromDistributedStream<Self::Item>>::ReduceB: 'static,
    Self::Task: 'static, 

impl<I, F, R, Source> ParallelPipe<Source> for FlatMap<I, F> where
    F: FnMut(<I as ParallelPipe<Source>>::Item) -> R + Clone + Send + 'static,
    I: ParallelPipe<Source>,
    R: Stream, 

type Item = <R as Stream>::Item

type Task = FlatMapTask<<I as ParallelPipe<Source>>::Task, F>

fn task(&self) -> <FlatMap<I, F> as ParallelPipe<Source>>::Task

fn inspect<F>(self, f: F) -> Inspect<Self, F> where
    F: FnMut(&Self::Item) + Clone + Send + 'static, 

fn update<F>(self, f: F) -> Update<Self, F> where
    F: FnMut(&mut Self::Item) + Clone + Send + 'static, 

fn map<B, F>(self, f: F) -> Map<Self, F> where
    F: FnMut(Self::Item) -> B + Clone + Send + 'static, 

fn flat_map<B, F>(self, f: F) -> FlatMap<Self, F> where
    B: Stream,
    F: FnMut(Self::Item) -> B + Clone + Send + 'static, 

fn filter<F, Fut>(self, f: F) -> Filter<Self, F> where
    F: FnMut(&Self::Item) -> Fut + Clone + Send + 'static,
    Fut: Future<Output = bool>, 

fn cloned<'a, T>(self) -> Cloned<Self, T, Source> where
    Self: ParallelPipe<&'a Source, Item = &'a T>,
    Source: 'a,
    T: Clone + 'a, 

fn pipe<S>(self, sink: S) -> Pipe<Self, S> where
    S: ParallelSink<Self::Item>, 

fn for_each<F>(self, f: F) -> ForEach<Self, F> where
    F: FnMut(Self::Item) + Clone + Send + 'static, 

fn fold<ID, F, B>(self, identity: ID, op: F) -> Fold<Self, ID, F, B> where
    B: Send + 'static,
    F: FnMut(B, Either<Self::Item, B>) -> B + Clone + Send + 'static,
    ID: FnMut() -> B + Clone + Send + 'static, 

fn group_by<A, B, ID, F, C>(
    self,
    identity: ID,
    op: F
) -> GroupBy<Self, ID, F, C> where
    A: Eq + Hash + Send + 'static,
    C: Send + 'static,
    F: FnMut(C, Either<B, C>) -> C + Clone + Send + 'static,
    ID: FnMut() -> C + Clone + Send + 'static,
    Self: ParallelPipe<Source, Item = (A, B)>, 

fn histogram(self) -> Histogram<Self> where
    Self::Item: Hash,
    Self::Item: Ord,
    Self::Item: Send,
    Self::Item: 'static, 

fn count(self) -> Count<Self>

fn sum<B>(self) -> Sum<Self, B> where
    B: Sum<Self::Item> + Sum<B> + Send + 'static, 

fn combine<F>(self, f: F) -> Combine<Self, F> where
    F: FnMut(Self::Item, Self::Item) -> Self::Item + Clone + Send + 'static,
    Self::Item: Send,
    Self::Item: 'static, 

fn max(self) -> Max<Self> where
    Self::Item: Ord,
    Self::Item: Send,
    Self::Item: 'static, 

fn max_by<F>(self, f: F) -> MaxBy<Self, F> where
    F: FnMut(&Self::Item, &Self::Item) -> Ordering + Clone + Send + 'static,
    Self::Item: Send,
    Self::Item: 'static, 

fn max_by_key<F, B>(self, f: F) -> MaxByKey<Self, F> where
    B: Ord + 'static,
    F: FnMut(&Self::Item) -> B + Clone + Send + 'static,
    Self::Item: Send,
    Self::Item: 'static, 

fn min(self) -> Min<Self> where
    Self::Item: Ord,
    Self::Item: Send,
    Self::Item: 'static, 

fn min_by<F>(self, f: F) -> MinBy<Self, F> where
    F: FnMut(&Self::Item, &Self::Item) -> Ordering + Clone + Send + 'static,
    Self::Item: Send,
    Self::Item: 'static, 

fn min_by_key<F, B>(self, f: F) -> MinByKey<Self, F> where
    B: Ord + 'static,
    F: FnMut(&Self::Item) -> B + Clone + Send + 'static,
    Self::Item: Send,
    Self::Item: 'static, 

fn most_frequent(
    self,
    n: usize,
    probability: f64,
    tolerance: f64
) -> MostFrequent<Self> where
    Self::Item: Hash,
    Self::Item: Eq,
    Self::Item: Clone,
    Self::Item: Send,
    Self::Item: 'static, 

fn most_distinct<A, B>(
    self,
    n: usize,
    probability: f64,
    tolerance: f64,
    error_rate: f64
) -> MostDistinct<Self> where
    A: Hash + Eq + Clone + Send + 'static,
    B: Hash + 'static,
    Self: ParallelPipe<Source, Item = (A, B)>, 

fn sample_unstable(self, samples: usize) -> SampleUnstable<Self> where
    Self::Item: Send,
    Self::Item: 'static, 

fn all<F>(self, f: F) -> All<Self, F> where
    F: FnMut(Self::Item) -> bool + Clone + Send + 'static, 

fn any<F>(self, f: F) -> Any<Self, F> where
    F: FnMut(Self::Item) -> bool + Clone + Send + 'static, 

fn collect<B>(self) -> Collect<Self, B> where
    B: FromParallelStream<Self::Item>, 

impl<I, F, R> ParallelStream for FlatMap<I, F> where
    F: FnMut(<I as ParallelStream>::Item) -> R + Clone + Send + 'static,
    I: ParallelStream,
    R: Stream, 

type Item = <R as Stream>::Item

type Task = FlatMapTask<<I as ParallelStream>::Task, F>

fn size_hint(&self) -> (usize, Option<usize>)

fn next_task(&mut self) -> Option<<FlatMap<I, F> as ParallelStream>::Task>

fn inspect<F>(self, f: F) -> Inspect<Self, F> where
    F: FnMut(&Self::Item) + Clone + Send + 'static, 

fn update<F>(self, f: F) -> Update<Self, F> where
    F: FnMut(&mut Self::Item) + Clone + Send + 'static, 

fn map<B, F>(self, f: F) -> Map<Self, F> where
    F: FnMut(Self::Item) -> B + Clone + Send + 'static, 

fn flat_map<B, F>(self, f: F) -> FlatMap<Self, F> where
    B: Stream,
    F: FnMut(Self::Item) -> B + Clone + Send + 'static, 

fn filter<F, Fut>(self, f: F) -> Filter<Self, F> where
    F: FnMut(&Self::Item) -> Fut + Clone + Send + 'static,
    Fut: Future<Output = bool>, 

#[must_use]fn reduce<'life0, 'async_trait, P, B, R1F, R1, R3>(
    self,
    pool: &'life0 P,
    reduce_a_factory: R1F,
    reduce_c: R3
) -> Pin<Box<dyn Future<Output = B> + 'async_trait>> where
    'life0: 'async_trait,
    B: 'async_trait,
    P: ThreadPool + 'async_trait,
    R1: ReducerSend<Item = Self::Item> + Send + 'static + 'async_trait,
    R1F: Factory<Item = R1> + 'async_trait,
    R3: Reducer<Item = <R1 as ReducerSend>::Output, Output = B> + 'async_trait,
    Self: 'async_trait,
    Self::Task: 'static, 

#[must_use]fn pipe<'life0, 'async_trait, P, ParSink, A>(
    self,
    pool: &'life0 P,
    sink: ParSink
) -> Pin<Box<dyn Future<Output = A> + 'async_trait>> where
    'life0: 'async_trait,
    A: 'async_trait,
    P: ThreadPool + 'async_trait,
    ParSink: ParallelSink<Self::Item, Output = A> + 'async_trait,
    Self: 'async_trait,
    <<ParSink as ParallelSink<Self::Item>>::Pipe as ParallelPipe<Self::Item>>::Task: 'static,
    <ParSink as ParallelSink<Self::Item>>::ReduceA: 'static,
    Self::Task: 'static, 

#[must_use]fn fork<'life0, 'async_trait, P, ParSinkA, ParSinkB, A, B>(
    self,
    pool: &'life0 P,
    sink_a: ParSinkA,
    sink_b: ParSinkB
) -> Pin<Box<dyn Future<Output = (A, B)> + 'async_trait>> where
    'life0: 'async_trait,
    A: 'async_trait,
    B: 'async_trait,
    P: ThreadPool + 'async_trait,
    ParSinkA: ParallelSink<Self::Item, Output = A> + 'async_trait,
    ParSinkB: for<'a> ParallelSink<&'a Self::Item, Output = B> + 'static + 'async_trait,
    Self: 'async_trait,
    <<ParSinkA as ParallelSink<Self::Item>>::Pipe as ParallelPipe<Self::Item>>::Task: 'static,
    <ParSinkA as ParallelSink<Self::Item>>::ReduceA: 'static,
    <ParSinkB as ParallelSink<&'static Self::Item>>::ReduceA: 'static,
    <<ParSinkB as ParallelSink<&'static Self::Item>>::Pipe as ParallelPipe<&'static Self::Item>>::Task: 'static,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn for_each<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = ()> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(Self::Item) + Clone + Send + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn fold<'life0, 'async_trait, P, ID, F, B>(
    self,
    pool: &'life0 P,
    identity: ID,
    op: F
) -> Pin<Box<dyn Future<Output = B> + 'async_trait>> where
    'life0: 'async_trait,
    B: Send + 'static + 'async_trait,
    F: FnMut(B, Either<Self::Item, B>) -> B + Clone + Send + 'static + 'async_trait,
    ID: FnMut() -> B + Clone + Send + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn group_by<'life0, 'async_trait, P, A, B, ID, F, C>(
    self,
    pool: &'life0 P,
    identity: ID,
    op: F
) -> Pin<Box<dyn Future<Output = HashMap<A, C, RandomState>> + 'async_trait>> where
    'life0: 'async_trait,
    A: Eq + Hash + Send + 'static + 'async_trait,
    B: 'static + 'async_trait,
    C: Send + 'static + 'async_trait,
    F: FnMut(C, Either<B, C>) -> C + Clone + Send + 'static + 'async_trait,
    ID: FnMut() -> C + Clone + Send + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: ParallelStream<Item = (A, B)> + 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn histogram<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = Vec<(Self::Item, usize)>> + 'async_trait>> where
    'life0: 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Hash,
    Self::Item: Ord,
    Self::Item: Send,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn count<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = usize> + 'async_trait>> where
    'life0: 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn sum<'life0, 'async_trait, P, S>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = S> + 'async_trait>> where
    'life0: 'async_trait,
    P: ThreadPool + 'async_trait,
    S: Sum<Self::Item> + Sum<S> + Send + 'static + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn combine<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(Self::Item, Self::Item) -> Self::Item + Clone + Send + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Send,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn max<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Ord,
    Self::Item: Send,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn max_by<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(&Self::Item, &Self::Item) -> Ordering + Clone + Send + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Send,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn max_by_key<'life0, 'async_trait, P, F, B>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    B: Ord + 'static + 'async_trait,
    F: FnMut(&Self::Item) -> B + Clone + Send + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Send,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn min<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Ord,
    Self::Item: Send,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn min_by<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(&Self::Item, &Self::Item) -> Ordering + Clone + Send + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Send,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn min_by_key<'life0, 'async_trait, P, F, B>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = Option<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    B: Ord + 'static + 'async_trait,
    F: FnMut(&Self::Item) -> B + Clone + Send + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Send,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn most_frequent<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P,
    n: usize,
    probability: f64,
    tolerance: f64
) -> Pin<Box<dyn Future<Output = Top<Self::Item, usize>> + 'async_trait>> where
    'life0: 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Hash,
    Self::Item: Eq,
    Self::Item: Clone,
    Self::Item: Send,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn most_distinct<'life0, 'async_trait, P, A, B>(
    self,
    pool: &'life0 P,
    n: usize,
    probability: f64,
    tolerance: f64,
    error_rate: f64
) -> Pin<Box<dyn Future<Output = Top<A, HyperLogLogMagnitude<B>>> + 'async_trait>> where
    'life0: 'async_trait,
    A: Hash + Eq + Clone + Send + 'static + 'async_trait,
    B: Hash + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: ParallelStream<Item = (A, B)> + 'async_trait,
    Self::Task: 'static, 

#[must_use]fn sample_unstable<'life0, 'async_trait, P>(
    self,
    pool: &'life0 P,
    samples: usize
) -> Pin<Box<dyn Future<Output = SampleUnstable<Self::Item>> + 'async_trait>> where
    'life0: 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: Send,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn all<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = bool> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(Self::Item) -> bool + Clone + Send + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn any<'life0, 'async_trait, P, F>(
    self,
    pool: &'life0 P,
    f: F
) -> Pin<Box<dyn Future<Output = bool> + 'async_trait>> where
    'life0: 'async_trait,
    F: FnMut(Self::Item) -> bool + Clone + Send + 'static + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    Self::Item: 'static,
    Self::Task: 'static, 

#[must_use]fn collect<'life0, 'async_trait, P, B>(
    self,
    pool: &'life0 P
) -> Pin<Box<dyn Future<Output = B> + 'async_trait>> where
    'life0: 'async_trait,
    B: FromParallelStream<Self::Item> + 'async_trait,
    P: ThreadPool + 'async_trait,
    Self: 'async_trait,
    <B as FromParallelStream<Self::Item>>::ReduceA: Send,
    <B as FromParallelStream<Self::Item>>::ReduceA: 'static,
    Self::Task: 'static,