Struct AssistantMessage 

pub struct AssistantMessage {
    pub model: String,
    pub id: String,
    pub message_type: String,
    pub role: String,
    pub content: Vec<ContentBlock>,
    pub stop_reason: Option<String>,
    pub stop_sequence: Option<String>,
    pub usage: Option<TokenUsage>,
    pub context_management: Option<Value>,
}

Assistant message with model info and usage

Fields

model: String

Model name (e.g., “claude-sonnet-4-5-20250929”)

id: String

Message ID (API-level identifier)

message_type: String

Message type (always “message”)

role: String

Role (always “assistant”)

content: Vec<ContentBlock>

Message content blocks

stop_reason: Option<String>

Stop reason: “end_turn”, “tool_use”, “max_tokens”

stop_sequence: Option<String>

Stop sequence (if stopped by sequence)

usage: Option<TokenUsage>

Token usage statistics

context_management: Option<Value>

Context management (reserved for future use)

Trait Implementations

impl Clone for AssistantMessage

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AssistantMessage

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AssistantMessage

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for AssistantMessage

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

where __S: Serializer,

Serialize this value into the given Serde serializer.