Make text embedding title optional

- Make text embedding title optional, as sending it causes erros
on tasks that don't support title, like CLASSIFICATION.
- Update dependencies

.gitignore

@@ -5,3 +5,4 @@ Cargo.lock
 *.pdb
 /target
 .cargo/config.toml
+.DS_Store

Cargo.toml

@@ -8,17 +8,17 @@ edition = "2021"
 [dependencies]
 deadqueue = "0.2.4"
 futures-util = "0.3.30"
-gcp_auth = "0.10.0"
-reqwest = { version = "0.11.9", features = ["json", "gzip"] }
-reqwest-eventsource = "0.5.0"
-serde = { version = "*", features = ["derive"] }
-serde_json = { version = "*"}
+gcp_auth = "0.11.1"
+reqwest = { version = "0.12.3", features = ["json", "gzip"] }
+reqwest-eventsource = "0.6.0"
+serde = { version = "1.0.197", features = ["derive"] }
+serde_json = { version = "1.0.115"}
 tracing = "0.1.40"
-tokio = { version = "1.36.0" }
+tokio = { version = "1.37.0" }
 
 [dev-dependencies]
 console = "0.15.8"
 dialoguer = "0.11.0"
-indicatif = "0.17.7"
-tokio = { version = "1.35.1", features = ["full"] }
+indicatif = "0.17.8"
+tokio = { version = "1.37.0", features = ["full"] }
 tracing-subscriber = "0.3.18"

examples/text-embedding.rs

@@ -21,12 +21,12 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let embedding_request = TextEmbeddingRequest {
         instances: vec![
             TextEmbeddingRequestInstance {
-                title: String::from("Embed testing"),
+                title: Some(String::from("Embed testing")),
                 content: String::from("Embed testing"),
                 task_type: String::from("RETRIEVAL_DOCUMENT"),
             },
             TextEmbeddingRequestInstance {
-                title: String::from("Embed testing 2"),
+                title: Some(String::from("Embed testing 2")),
                 content: String::from("Embed testing 2"),
                 task_type: String::from("RETRIEVAL_DOCUMENT"),
             },

src/types/text_embeddings.rs

@@ -11,7 +11,7 @@ pub struct TextEmbeddingRequest {
 pub struct TextEmbeddingRequestInstance {
     pub content: String,
     pub task_type: String,
-    pub title: String,
+    pub title: Option<String>,
 }
 
 #[derive(Clone, Debug, Serialize, Deserialize)]