Struct McpSamplingMessage 

#[non_exhaustive]
pub struct McpSamplingMessage {
    pub role: Role,
    pub content: SamplingContent<SamplingMessageContent>,
    pub meta: Option<Meta>,
}

Re-exports of the rmcp wire-protocol types this crate now surfaces directly instead of wrapping. Pull these in to pattern-match on tool annotations, content blocks, structured tool output, embedded resources, sampling / elicitation requests, progress and log notifications, etc. A message in a sampling conversation, containing a role and content.

This represents a single message in a conversation flow, used primarily in LLM sampling requests where the conversation history is important for generating appropriate responses.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

role: Role

The role of the message sender (User or Assistant)

content: SamplingContent<SamplingMessageContent>

The actual content of the message (text, image, audio, tool use, or tool result)

meta: Option<Meta>

Implementations

impl SamplingMessage

pub fn new( role: Role, content: impl Into<SamplingMessageContent>, ) -> SamplingMessage

pub fn new_multiple( role: Role, contents: Vec<SamplingMessageContent>, ) -> SamplingMessage

pub fn user_text(text: impl Into<String>) -> SamplingMessage

pub fn assistant_text(text: impl Into<String>) -> SamplingMessage

pub fn user_tool_result( tool_use_id: impl Into<String>, content: Vec<Annotated<RawContent>>, ) -> SamplingMessage

pub fn assistant_tool_use( id: impl Into<String>, name: impl Into<String>, input: Map<String, Value>, ) -> SamplingMessage

Trait Implementations

impl Clone for SamplingMessage

fn clone(&self) -> SamplingMessage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SamplingMessage

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SamplingMessage

fn deserialize<__D>( __deserializer: __D, ) -> Result<SamplingMessage, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for SamplingMessage

fn eq(&self, other: &SamplingMessage) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for SamplingMessage

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SamplingMessage