Struct Message 

pub struct Message {
    pub role: String,
    pub content: Vec<ContentBlock>,
    pub reasoning_content: Option<String>,
}

Message in conversation

Fields

role: String

content: Vec<ContentBlock>

reasoning_content: Option<String>

Reasoning/thinking content from models like kimi-k2.5, DeepSeek-R1. Stored so it can be sent back in conversation history.

Implementations

impl Message

pub fn user(text: &str) -> Self

pub fn user_with_attachments(text: &str, attachments: &[Attachment]) -> Self

Create a user message with text and image attachments.

pub fn tool_result(tool_use_id: &str, content: &str, is_error: bool) -> Self

pub fn tool_result_with_images( tool_use_id: &str, text: &str, images: &[Attachment], is_error: bool, ) -> Self

Create a tool result message with multi-modal content (text + images).

pub fn text(&self) -> String

Extract text content from message

pub fn tool_calls(&self) -> Vec<ToolCall>

Extract tool calls from message

Trait Implementations

impl Clone for Message

fn clone(&self) -> Message

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Message

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Message

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Message

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

where __S: Serializer,

Serialize this value into the given Serde serializer.