feat!: add function calling support to client.chat() & client.chat_async()

BREAKING CHANGE: Too many to count in this version. Check the README examples.

src/v1/embedding.rs

@@ -2,6 +2,9 @@ use serde::{Deserialize, Serialize};
 
 use crate::v1::{common, constants};
 
+// -----------------------------------------------------------------------------
+// Request
+
 #[derive(Debug)]
 pub struct EmbeddingRequestOptions {
     pub encoding_format: Option<EmbeddingRequestEncodingFormat>,
@@ -43,6 +46,9 @@ pub enum EmbeddingRequestEncodingFormat {
     float,
 }
 
+// -----------------------------------------------------------------------------
+// Response
+
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct EmbeddingResponse {
     pub id: String,