agentix 0.22.2

Multi-provider LLM client for Rust — streaming, non-streaming, tool calls, MCP, DeepSeek, OpenAI, Anthropic, Gemini, Mimo
Documentation 
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use serde::Deserialize;
use serde_json::Value;

#[derive(Debug, Deserialize)]
pub struct Response {
    pub content: Vec<ResponseBlock>,
    pub usage: Option<Usage>,
    pub stop_reason: Option<String>,
}

#[derive(Debug, Deserialize)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum ResponseBlock {
    Text {
        text: String,
    },
    ToolUse {
        id: String,
        name: String,
        input: Value,
    },
    Thinking {
        thinking: String,
        #[serde(default)]
        signature: Option<String>,
    },
    RedactedThinking {
        data: String,
    },
}

#[derive(Debug, Deserialize)]
pub struct Usage {
    pub input_tokens: u32,
    pub output_tokens: u32,
    #[serde(default)]
    pub cache_read_input_tokens: u32,
    #[serde(default)]
    pub cache_creation_input_tokens: u32,
}

impl From<Usage> for crate::types::UsageStats {
    fn from(u: Usage) -> Self {
        Self {
            prompt_tokens: u.input_tokens as usize,
            completion_tokens: u.output_tokens as usize,
            total_tokens: (u.input_tokens + u.output_tokens) as usize,
            cache_read_tokens: u.cache_read_input_tokens as usize,
            cache_creation_tokens: u.cache_creation_input_tokens as usize,
            reasoning_tokens: 0,
        }
    }
}

#[derive(Debug, Deserialize)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum StreamEvent {
    MessageStart {
        message: MessageStart,
    },
    ContentBlockStart {
        index: u32,
        content_block: ContentBlockStart,
    },
    ContentBlockDelta {
        index: u32,
        delta: ContentBlockDelta,
    },
    ContentBlockStop {
        index: u32,
    },
    MessageDelta {
        delta: MessageDelta,
        usage: Option<Usage>,
    },
    MessageStop,
    Error {
        error: StreamError,
    },
    #[serde(other)]
    Unknown,
}

#[derive(Debug, Deserialize)]
pub struct MessageStart {
    pub usage: Option<Usage>,
}

#[derive(Debug, Deserialize)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum ContentBlockStart {
    Text { text: String },
    ToolUse { id: String, name: String },
    Thinking { thinking: String },
    RedactedThinking { data: String },
}

#[derive(Debug, Deserialize)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum ContentBlockDelta {
    TextDelta { text: String },
    InputJsonDelta { partial_json: String },
    ThinkingDelta { thinking: String },
    SignatureDelta { signature: String },
}

#[derive(Debug, Deserialize)]
pub struct MessageDelta {
    pub stop_reason: Option<String>,
}

#[derive(Debug, Deserialize)]
pub struct StreamError {
    pub r#type: String,
    pub message: String,
}