mirror of https://github.com/sigoden/aichat
feat: abandon PaLM2 (#274)
parent
6286251d32
commit
6fb13359f4
@ -1,131 +0,0 @@
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use super::{PaLMClient, Client, ExtraConfig, Model, PromptType, SendData, TokensCountFactors, send_message_as_streaming, patch_system_message};
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use crate::{config::GlobalConfig, render::ReplyHandler, utils::PromptKind};
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use anyhow::{anyhow, bail, Result};
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use async_trait::async_trait;
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use reqwest::{Client as ReqwestClient, RequestBuilder};
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use serde::Deserialize;
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use serde_json::{json, Value};
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const API_BASE: &str = "https://generativelanguage.googleapis.com/v1beta2/models/";
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const MODELS: [(&str, usize); 1] = [("chat-bison-001", 4096)];
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const TOKENS_COUNT_FACTORS: TokensCountFactors = (3, 8);
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#[derive(Debug, Clone, Deserialize, Default)]
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pub struct PaLMConfig {
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pub name: Option<String>,
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pub api_key: Option<String>,
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pub extra: Option<ExtraConfig>,
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}
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#[async_trait]
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impl Client for PaLMClient {
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fn config(&self) -> (&GlobalConfig, &Option<ExtraConfig>) {
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(&self.global_config, &self.config.extra)
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}
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async fn send_message_inner(&self, client: &ReqwestClient, data: SendData) -> Result<String> {
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let builder = self.request_builder(client, data)?;
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send_message(builder).await
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}
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async fn send_message_streaming_inner(
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&self,
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client: &ReqwestClient,
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handler: &mut ReplyHandler,
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data: SendData,
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) -> Result<()> {
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let builder = self.request_builder(client, data)?;
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send_message_as_streaming(builder, handler, send_message).await
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}
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}
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impl PaLMClient {
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config_get_fn!(api_key, get_api_key);
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pub const PROMPTS: [PromptType<'static>; 1] =
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[("api_key", "API Key:", true, PromptKind::String)];
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pub fn list_models(local_config: &PaLMConfig) -> Vec<Model> {
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let client_name = Self::name(local_config);
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MODELS
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.into_iter()
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.map(|(name, max_tokens)| {
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Model::new(client_name, name)
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.set_max_tokens(Some(max_tokens))
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.set_tokens_count_factors(TOKENS_COUNT_FACTORS)
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})
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.collect()
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}
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fn request_builder(&self, client: &ReqwestClient, data: SendData) -> Result<RequestBuilder> {
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let api_key = self.get_api_key()?;
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let body = build_body(data, self.model.name.clone());
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let model = self.model.name.clone();
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let url = format!("{API_BASE}{}:generateMessage?key={}", model, api_key);
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debug!("PaLM Request: {url} {body}");
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let builder = client.post(url).json(&body);
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Ok(builder)
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}
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}
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async fn send_message(builder: RequestBuilder) -> Result<String> {
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let data: Value = builder.send().await?.json().await?;
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check_error(&data)?;
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let output = data["candidates"][0]["content"]
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.as_str()
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.ok_or_else(|| {
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if let Some(reason) = data["filters"][0]["reason"].as_str() {
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anyhow!("Content Filtering: {reason}")
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} else {
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anyhow!("Unexpected response")
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}
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})?;
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Ok(output.to_string())
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}
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fn check_error(data: &Value) -> Result<()> {
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if let Some(error) = data["error"].as_object() {
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if let Some(message) = error["message"].as_str() {
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bail!("{message}");
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} else {
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bail!("Error {}", Value::Object(error.clone()));
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}
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}
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Ok(())
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}
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fn build_body(data: SendData, _model: String) -> Value {
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let SendData {
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mut messages,
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temperature,
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..
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} = data;
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patch_system_message(&mut messages);
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let messages: Vec<Value> = messages.into_iter().map(|v| json!({ "content": v.content })).collect();
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let prompt = json!({ "messages": messages });
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let mut body = json!({
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"prompt": prompt,
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});
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if let Some(temperature) = temperature {
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body["temperature"] = (temperature / 2.0).into();
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}
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body
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}
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