mini_langchain/tools/
stream.rs

1use crate::llm::tokens::TokenUsage;
2use serde_json::Value;
3use std::io::{self, Write};
4
5#[derive(Debug, Clone)]
6pub struct StreamData {
7    pub value: Value,
8    pub tokens: Option<TokenUsage>,
9    pub content: String,
10}
11
12
13impl StreamData {
14    pub fn new<S: Into<String>>(value: Value, tokens: Option<TokenUsage>, content: S) -> Self {
15        Self {
16            value,
17            tokens,
18            content: content.into(),
19        }
20    }
21
22    pub fn to_stdout(&self) -> io::Result<()> {
23        let stdout = io::stdout();
24        let mut handle = stdout.lock();
25        write!(handle, "{}", self.content)?;
26        handle.flush()
27    }
28}