Enum MessageRole 

#[non_exhaustive]
pub enum MessageRole {
    System,
    User,
    Assistant,
    Tool,
}

Represents the role of a message sender in a conversation.

Roles are serialized to lowercase strings matching the OpenAI API format.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

System

System-level instructions or context for the LLM.

User

Messages from the end user.

Assistant

Messages from the LLM assistant, optionally including tool calls.

Tool

Messages containing tool execution results with tool_call_id and name fields.

Trait Implementations

impl Clone for MessageRole

fn clone(&self) -> MessageRole

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MessageRole

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MessageRole

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for MessageRole

fn eq(&self, other: &MessageRole) -> 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 MessageRole

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for MessageRole

impl StructuralPartialEq for MessageRole