diff --git a/Cargo.toml b/Cargo.toml
index 5d4964c..7844cb6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "openai-api-rs"
-version = "0.1.1"
+version = "0.1.2"
 edition = "2021"
 authors = ["Dongri Jin <dongrify@gmail.com>"]
 license = "MIT"
diff --git a/README.md b/README.md
index 09521b2..3d3a2b6 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 Cargo.toml
 ```toml
 [dependencies]
-openai-api-rs = "0.1"
+openai-api-rs = "0.1.2"
 ```
 
 ## Example:
@@ -12,6 +12,30 @@ openai-api-rs = "0.1"
 export OPENAI_API_KEY={YOUR_API}
 ```
 
+### Chat
+```rust
+use openai_api_rs::v1::api::Client;
+use openai_api_rs::v1::chat_completion::{self, ChatCompletionRequest};
+use std::env;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let client = Client::new(env::var("OPENAI_API_KEY").unwrap().to_string());
+    let req = ChatCompletionRequest {
+        model: chat_completion::GPT3_5_TURBO.to_string(),
+        messages: vec![chat_completion::ChatCompletionMessage {
+            role: chat_completion::MessageRole::user,
+            content: String::from("NFTとは？"),
+        }],
+    };
+    let result = client.chat_completion(req).await?;
+    println!("{:?}", result.choices[0].message.content);
+
+    Ok(())
+}
+```
+
+### Completion
 ```rust
 use openai_api_rs::v1::completion::{self, CompletionRequest};
 use openai_api_rs::v1::api::Client;
diff --git a/examples/chat_completion.rs b/examples/chat_completion.rs
new file mode 100644
index 0000000..e4f965b
--- /dev/null
+++ b/examples/chat_completion.rs
@@ -0,0 +1,21 @@
+use openai_api_rs::v1::api::Client;
+use openai_api_rs::v1::chat_completion::{self, ChatCompletionRequest};
+use std::env;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let client = Client::new(env::var("OPENAI_API_KEY").unwrap().to_string());
+    let req = ChatCompletionRequest {
+        model: chat_completion::GPT3_5_TURBO.to_string(),
+        messages: vec![chat_completion::ChatCompletionMessage {
+            role: chat_completion::MessageRole::user,
+            content: String::from("NFTとは？"),
+        }],
+    };
+    let result = client.chat_completion(req).await?;
+    println!("{:?}", result.choices[0].message.content);
+
+    Ok(())
+}
+
+// OPENAI_API_KEY=xxxx cargo run --package openai-api-rs --example chat_completion
diff --git a/examples/completion.rs b/examples/completion.rs
index 4c95bdc..ecb20af 100644
--- a/examples/completion.rs
+++ b/examples/completion.rs
@@ -1,5 +1,5 @@
-use openai_api_rs::v1::completion::{self, CompletionRequest};
 use openai_api_rs::v1::api::Client;
+use openai_api_rs::v1::completion::{self, CompletionRequest};
 use std::env;
 
 #[tokio::main]
@@ -22,11 +22,11 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         best_of: None,
         logit_bias: None,
         user: None,
-      };
+    };
     let result = client.completion(req).await?;
     println!("{:}", result.choices[0].text);
 
     Ok(())
 }
 
-// cargo run --package openai-rs --example completion
+// OPENAI_API_KEY=xxxx cargo run --package openai-api-rs --example completion
diff --git a/src/v1/api.rs b/src/v1/api.rs
index 1fb6b37..32a260e 100644
--- a/src/v1/api.rs
+++ b/src/v1/api.rs
@@ -1,32 +1,22 @@
-
+use crate::v1::chat_completion::{ChatCompletionRequest, ChatCompletionResponse};
 use crate::v1::completion::{CompletionRequest, CompletionResponse};
 use crate::v1::edit::{EditRequest, EditResponse};
-use crate::v1::image::{
-    ImageGenerationRequest,
-    ImageGenerationResponse,
-    ImageEditRequest,
-    ImageEditResponse,
-    ImageVariationRequest,
-    ImageVariationResponse,
-};
 use crate::v1::embedding::{EmbeddingRequest, EmbeddingResponse};
 use crate::v1::file::{
-    FileListResponse,
-    FileUploadRequest,
+    FileDeleteRequest, FileDeleteResponse, FileListResponse, FileRetrieveContentRequest,
+    FileRetrieveContentResponse, FileRetrieveRequest, FileRetrieveResponse, FileUploadRequest,
     FileUploadResponse,
-    FileDeleteRequest,
-    FileDeleteResponse,
-    FileRetrieveRequest,
-    FileRetrieveResponse,
-    FileRetrieveContentRequest,
-    FileRetrieveContentResponse,
+};
+use crate::v1::image::{
+    ImageEditRequest, ImageEditResponse, ImageGenerationRequest, ImageGenerationResponse,
+    ImageVariationRequest, ImageVariationResponse,
 };
 use reqwest::Response;
 
-const APU_URL_V1: &str =  "https://api.openai.com/v1";
+const APU_URL_V1: &str = "https://api.openai.com/v1";
 
 pub struct Client {
-  pub api_key: String,
+    pub api_key: String,
 }
 
 impl Client {
@@ -34,25 +24,30 @@ impl Client {
         Self { api_key }
     }
 
-    pub async fn post<T:serde::ser::Serialize>(&self, path: &str, params: &T) -> Result<Response, Box<dyn std::error::Error>> {
+    pub async fn post<T: serde::ser::Serialize>(
+        &self,
+        path: &str,
+        params: &T,
+    ) -> Result<Response, Box<dyn std::error::Error>> {
         let client = reqwest::Client::new();
-        let url = format!("{}{}", APU_URL_V1, path);
+        let url = format!("{APU_URL_V1}{path}");
         let res = client
             .post(&url)
             .header(reqwest::header::CONTENT_TYPE, "application/json")
-            .header(reqwest::header::AUTHORIZATION, "Bearer ".to_owned() + &self.api_key)
+            .header(
+                reqwest::header::AUTHORIZATION,
+                "Bearer ".to_owned() + &self.api_key,
+            )
             .json(&params)
             .send()
             .await;
         match res {
             Ok(res) => match res.status().is_success() {
                 true => Ok(res),
-                false => {
-                    Err(Box::new(std::io::Error::new(
-                        std::io::ErrorKind::Other,
-                        format!("{}: {}", res.status(), res.text().await.unwrap())
-                    )))
-                },
+                false => Err(Box::new(std::io::Error::new(
+                    std::io::ErrorKind::Other,
+                    format!("{}: {}", res.status(), res.text().await.unwrap()),
+                ))),
             },
             Err(e) => Err(Box::new(e)),
         }
@@ -60,22 +55,23 @@ impl Client {
 
     pub async fn get(&self, path: &str) -> Result<Response, Box<dyn std::error::Error>> {
         let client = reqwest::Client::new();
-        let url = format!("{}{}", APU_URL_V1, path);
+        let url = format!("{APU_URL_V1}{path}");
         let res = client
             .get(&url)
             .header(reqwest::header::CONTENT_TYPE, "application/json")
-            .header(reqwest::header::AUTHORIZATION, "Bearer ".to_owned() + &self.api_key)
+            .header(
+                reqwest::header::AUTHORIZATION,
+                "Bearer ".to_owned() + &self.api_key,
+            )
             .send()
             .await;
         match res {
             Ok(res) => match res.status().is_success() {
                 true => Ok(res),
-                false => {
-                    Err(Box::new(std::io::Error::new(
-                        std::io::ErrorKind::Other,
-                        format!("{}: {}", res.status(), res.text().await.unwrap())
-                    )))
-                },
+                false => Err(Box::new(std::io::Error::new(
+                    std::io::ErrorKind::Other,
+                    format!("{}: {}", res.status(), res.text().await.unwrap()),
+                ))),
             },
             Err(e) => Err(Box::new(e)),
         }
@@ -83,37 +79,39 @@ impl Client {
 
     pub async fn delete(&self, path: &str) -> Result<Response, Box<dyn std::error::Error>> {
         let client = reqwest::Client::new();
-        let url = format!("{}{}", APU_URL_V1, path);
+        let url = format!("{APU_URL_V1}{path}");
         let res = client
             .delete(&url)
             .header(reqwest::header::CONTENT_TYPE, "application/json")
-            .header(reqwest::header::AUTHORIZATION, "Bearer ".to_owned() + &self.api_key)
+            .header(
+                reqwest::header::AUTHORIZATION,
+                "Bearer ".to_owned() + &self.api_key,
+            )
             .send()
             .await;
         match res {
             Ok(res) => match res.status().is_success() {
                 true => Ok(res),
-                false => {
-                    Err(Box::new(std::io::Error::new(
-                        std::io::ErrorKind::Other,
-                        format!("{}: {}", res.status(), res.text().await.unwrap())
-                    )))
-                },
+                false => Err(Box::new(std::io::Error::new(
+                    std::io::ErrorKind::Other,
+                    format!("{}: {}", res.status(), res.text().await.unwrap()),
+                ))),
             },
             Err(e) => Err(Box::new(e)),
         }
     }
 
-    pub async fn completion(&self, req: CompletionRequest) -> Result<CompletionResponse, Box<dyn std::error::Error>> {
+    pub async fn completion(
+        &self,
+        req: CompletionRequest,
+    ) -> Result<CompletionResponse, Box<dyn std::error::Error>> {
         let res = self.post("/completions", &req).await;
         match res {
             Ok(res) => {
                 let r = res.json::<CompletionResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
 
@@ -122,63 +120,65 @@ impl Client {
         match res {
             Ok(res) => {
                 let r = res.json::<EditResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
 
-    pub async fn image_generation(&self, req: ImageGenerationRequest) -> Result<ImageGenerationResponse, Box<dyn std::error::Error>> {
+    pub async fn image_generation(
+        &self,
+        req: ImageGenerationRequest,
+    ) -> Result<ImageGenerationResponse, Box<dyn std::error::Error>> {
         let res = self.post("/images/generations", &req).await;
         match res {
             Ok(res) => {
                 let r = res.json::<ImageGenerationResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
 
-    pub async fn image_edit(&self, req: ImageEditRequest) -> Result<ImageEditResponse, Box<dyn std::error::Error>> {
+    pub async fn image_edit(
+        &self,
+        req: ImageEditRequest,
+    ) -> Result<ImageEditResponse, Box<dyn std::error::Error>> {
         let res = self.post("/images/edits", &req).await;
         match res {
             Ok(res) => {
                 let r = res.json::<ImageEditResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
 
-    pub async fn image_variation(&self, req: ImageVariationRequest) -> Result<ImageVariationResponse, Box<dyn std::error::Error>> {
+    pub async fn image_variation(
+        &self,
+        req: ImageVariationRequest,
+    ) -> Result<ImageVariationResponse, Box<dyn std::error::Error>> {
         let res = self.post("/images/variations", &req).await;
         match res {
             Ok(res) => {
                 let r = res.json::<ImageVariationResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
 
-    pub async fn embedding(&self, req: EmbeddingRequest) -> Result<EmbeddingResponse, Box<dyn std::error::Error>> {
+    pub async fn embedding(
+        &self,
+        req: EmbeddingRequest,
+    ) -> Result<EmbeddingResponse, Box<dyn std::error::Error>> {
         let res = self.post("/embeddings", &req).await;
         match res {
             Ok(res) => {
                 let r = res.json::<EmbeddingResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
 
@@ -187,64 +187,81 @@ impl Client {
         match res {
             Ok(res) => {
                 let r = res.json::<FileListResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
-    
-    pub async fn file_upload(&self, req: FileUploadRequest) -> Result<FileUploadResponse, Box<dyn std::error::Error>> {
+
+    pub async fn file_upload(
+        &self,
+        req: FileUploadRequest,
+    ) -> Result<FileUploadResponse, Box<dyn std::error::Error>> {
         let res = self.post("/files", &req).await;
         match res {
             Ok(res) => {
                 let r = res.json::<FileUploadResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
-    
-    pub async fn file_delete(&self, req: FileDeleteRequest) -> Result<FileDeleteResponse, Box<dyn std::error::Error>> {
+
+    pub async fn file_delete(
+        &self,
+        req: FileDeleteRequest,
+    ) -> Result<FileDeleteResponse, Box<dyn std::error::Error>> {
         let res = self.delete(&format!("{}/{}", "/files", req.file_id)).await;
         match res {
             Ok(res) => {
                 let r = res.json::<FileDeleteResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
 
-    pub async fn file_retrieve(&self, req: FileRetrieveRequest) -> Result<FileRetrieveResponse, Box<dyn std::error::Error>> {
+    pub async fn file_retrieve(
+        &self,
+        req: FileRetrieveRequest,
+    ) -> Result<FileRetrieveResponse, Box<dyn std::error::Error>> {
         let res = self.get(&format!("{}/{}", "/files", req.file_id)).await;
         match res {
             Ok(res) => {
                 let r = res.json::<FileRetrieveResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
 
-    pub async fn file_retrieve_content(&self, req: FileRetrieveContentRequest) -> Result<FileRetrieveContentResponse, Box<dyn std::error::Error>> {
-        let res = self.get(&format!("{}/{}/content", "/files", req.file_id)).await;
+    pub async fn file_retrieve_content(
+        &self,
+        req: FileRetrieveContentRequest,
+    ) -> Result<FileRetrieveContentResponse, Box<dyn std::error::Error>> {
+        let res = self
+            .get(&format!("{}/{}/content", "/files", req.file_id))
+            .await;
         match res {
             Ok(res) => {
                 let r = res.json::<FileRetrieveContentResponse>().await?;
-                return Ok(r);
-            },
-            Err(e) => {
-                return Err(e);
-            },
+                Ok(r)
+            }
+            Err(e) => Err(e),
         }
     }
 
+    pub async fn chat_completion(
+        &self,
+        req: ChatCompletionRequest,
+    ) -> Result<ChatCompletionResponse, Box<dyn std::error::Error>> {
+        let res = self.post("/chat/completions", &req).await;
+        match res {
+            Ok(res) => {
+                let r = res.json::<ChatCompletionResponse>().await?;
+                Ok(r)
+            }
+            Err(e) => Err(e),
+        }
+    }
 }
diff --git a/src/v1/chat_completion.rs b/src/v1/chat_completion.rs
new file mode 100644
index 0000000..d3cfa8f
--- /dev/null
+++ b/src/v1/chat_completion.rs
@@ -0,0 +1,43 @@
+use serde::{Deserialize, Serialize};
+
+use crate::v1::common;
+
+pub const GPT3_5_TURBO: &str = "gpt-3.5-turbo";
+pub const GPT3_5_TURBO_0301: &str = "gpt-3.5-turbo-0301";
+
+#[derive(Debug, Serialize)]
+pub struct ChatCompletionRequest {
+    pub model: String,
+    pub messages: Vec<ChatCompletionMessage>,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+#[allow(non_camel_case_types)]
+pub enum MessageRole {
+    user,
+    system,
+    assistant,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct ChatCompletionMessage {
+    pub role: MessageRole,
+    pub content: String,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct ChatCompletionChoice {
+    pub index: i64,
+    pub message: ChatCompletionMessage,
+    pub finish_reason: String,
+}
+
+#[derive(Debug, Deserialize)]
+pub struct ChatCompletionResponse {
+    pub id: String,
+    pub object: String,
+    pub created: i64,
+    pub model: String,
+    pub choices: Vec<ChatCompletionChoice>,
+    pub usage: common::Usage,
+}
diff --git a/src/v1/common.rs b/src/v1/common.rs
index 7a87acc..05f500b 100644
--- a/src/v1/common.rs
+++ b/src/v1/common.rs
@@ -1,10 +1,8 @@
-
-use serde::{Deserialize};
-
+use serde::Deserialize;
 
 #[derive(Debug, Deserialize)]
 pub struct Usage {
-  pub prompt_tokens:      i32,
-	pub completion_tokens:  i32,
-	pub total_tokens:       i32,
+    pub prompt_tokens: i32,
+    pub completion_tokens: i32,
+    pub total_tokens: i32,
 }
diff --git a/src/v1/completion.rs b/src/v1/completion.rs
index 592cdd1..4e22d9f 100644
--- a/src/v1/completion.rs
+++ b/src/v1/completion.rs
@@ -1,79 +1,79 @@
-use serde::{Serialize, Deserialize};
-use std::option::Option;
+use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
+use std::option::Option;
 
 use crate::v1::common;
 
-pub const GPT3_TEXT_DAVINCI_003: &str       = "text-davinci-003";
-pub const GPT3_TEXT_DAVINCI_002: &str       = "text-davinci-002";
-pub const GPT3_TEXT_CURIE_001: &str         = "text-curie-001";
-pub const GPT3_TEXT_BABBAGE_001: &str       = "text-babbage-001";
-pub const GPT3_TEXT_ADA_001: &str           = "text-ada-001";
-pub const GPT3_TEXT_DAVINCI_001: &str       = "text-davinci-001";
-pub const GPT3_DAVINCI_INSTRUCT_BETA: &str  = "davinci-instruct-beta";
-pub const GPT3_DAVINCI: &str                = "davinci";
-pub const GPT3_CURIE_INSTRUCT_BETA: &str    = "curie-instruct-beta";
-pub const GPT3_CURIE: &str                  = "curie";
-pub const GPT3_ADA: &str                    = "ada";
-pub const GPT3_BABBAGE: &str                = "babbage";
+pub const GPT3_TEXT_DAVINCI_003: &str = "text-davinci-003";
+pub const GPT3_TEXT_DAVINCI_002: &str = "text-davinci-002";
+pub const GPT3_TEXT_CURIE_001: &str = "text-curie-001";
+pub const GPT3_TEXT_BABBAGE_001: &str = "text-babbage-001";
+pub const GPT3_TEXT_ADA_001: &str = "text-ada-001";
+pub const GPT3_TEXT_DAVINCI_001: &str = "text-davinci-001";
+pub const GPT3_DAVINCI_INSTRUCT_BETA: &str = "davinci-instruct-beta";
+pub const GPT3_DAVINCI: &str = "davinci";
+pub const GPT3_CURIE_INSTRUCT_BETA: &str = "curie-instruct-beta";
+pub const GPT3_CURIE: &str = "curie";
+pub const GPT3_ADA: &str = "ada";
+pub const GPT3_BABBAGE: &str = "babbage";
 
 #[derive(Debug, Serialize)]
 pub struct CompletionRequest {
-    pub model:             String,
+    pub model: String,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub prompt:            Option<String>,
+    pub prompt: Option<String>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub suffix:            Option<String>,
+    pub suffix: Option<String>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub max_tokens:        Option<i32>,
+    pub max_tokens: Option<i32>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub temperature:       Option<f32>,
+    pub temperature: Option<f32>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub top_p:             Option<f32>,
+    pub top_p: Option<f32>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub n:                 Option<i32>,
+    pub n: Option<i32>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub stream:            Option<bool>,
+    pub stream: Option<bool>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub logprobs:          Option<i32>,
+    pub logprobs: Option<i32>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub echo:              Option<bool>,
+    pub echo: Option<bool>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub stop:              Option<Vec<String>>,
+    pub stop: Option<Vec<String>>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub presence_penalty:  Option<f32>,
+    pub presence_penalty: Option<f32>,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub frequency_penalty: Option<f32>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub best_of:           Option<i32>,
+    pub best_of: Option<i32>,
     #[serde(skip_serializing_if = "Option::is_none")]
-    pub logit_bias:        Option<HashMap<String, i32>>,
+    pub logit_bias: Option<HashMap<String, i32>>,
     #[serde(skip_serializing_if = "Option::is_none")]
-	pub user:              Option<String>,
+    pub user: Option<String>,
 }
 
 #[derive(Debug, Deserialize)]
 pub struct CompletionChoice {
-    pub text:          String,
-    pub index:         i64,
+    pub text: String,
+    pub index: i64,
     pub finish_reason: String,
-    pub logprobs:      Option<LogprobResult>,
+    pub logprobs: Option<LogprobResult>,
 }
 
 #[derive(Debug, Deserialize)]
 pub struct LogprobResult {
-	pub tokens:         Vec<String>,
-	pub token_logprobs: Vec<f32>,
-	pub top_logprobs:   Vec<HashMap<String, f32>>,
-	pub text_offset:    Vec<i32>,
+    pub tokens: Vec<String>,
+    pub token_logprobs: Vec<f32>,
+    pub top_logprobs: Vec<HashMap<String, f32>>,
+    pub text_offset: Vec<i32>,
 }
 
 #[derive(Debug, Deserialize)]
 pub struct CompletionResponse {
-    pub id:      String,
-    pub object:  String,
+    pub id: String,
+    pub object: String,
     pub created: i64,
-    pub model:   String,
+    pub model: String,
     pub choices: Vec<CompletionChoice>,
-	pub usage:   common::Usage,
+    pub usage: common::Usage,
 }
diff --git a/src/v1/edit.rs b/src/v1/edit.rs
index c562c52..82870cf 100644
--- a/src/v1/edit.rs
+++ b/src/v1/edit.rs
@@ -1,4 +1,4 @@
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 use std::option::Option;
 
 use crate::v1::common;
@@ -18,15 +18,15 @@ pub struct EditRequest {
 }
 
 #[derive(Debug, Deserialize)]
-pub struct EditChoice{
-	pub text:  String,
-	pub index: i32,
+pub struct EditChoice {
+    pub text: String,
+    pub index: i32,
 }
 
 #[derive(Debug, Deserialize)]
 pub struct EditResponse {
-    pub object:  String,
+    pub object: String,
     pub created: i64,
-    pub usage:   common::Usage,
+    pub usage: common::Usage,
     pub choices: Vec<EditChoice>,
 }
diff --git a/src/v1/embedding.rs b/src/v1/embedding.rs
index c49b06f..27d65f2 100644
--- a/src/v1/embedding.rs
+++ b/src/v1/embedding.rs
@@ -1,14 +1,14 @@
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 use std::option::Option;
 
 use crate::v1::common;
 
 #[derive(Debug, Deserialize)]
-pub struct EmbeddingData{
-	pub object:  String,
-  pub embedding: Vec<f32>,
-  pub index: i32,
-  pub usage: common::Usage,
+pub struct EmbeddingData {
+    pub object: String,
+    pub embedding: Vec<f32>,
+    pub index: i32,
+    pub usage: common::Usage,
 }
 
 #[derive(Debug, Serialize)]
@@ -19,9 +19,8 @@ pub struct EmbeddingRequest {
     pub user: Option<String>,
 }
 
-
 #[derive(Debug, Deserialize)]
 pub struct EmbeddingResponse {
     pub object: String,
-    pub data:   Vec<EmbeddingData>,
+    pub data: Vec<EmbeddingData>,
 }
diff --git a/src/v1/file.rs b/src/v1/file.rs
index 9437700..5eff6cc 100644
--- a/src/v1/file.rs
+++ b/src/v1/file.rs
@@ -1,8 +1,8 @@
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 
 #[derive(Debug, Deserialize)]
-pub struct FileData{
-    pub id:  String,
+pub struct FileData {
+    pub id: String,
     pub oejct: String,
     pub bytes: i32,
     pub created_at: i64,
@@ -13,10 +13,9 @@ pub struct FileData{
 #[derive(Debug, Deserialize)]
 pub struct FileListResponse {
     pub object: String,
-    pub data:   Vec<FileData>,
+    pub data: Vec<FileData>,
 }
 
-
 #[derive(Debug, Serialize)]
 pub struct FileUploadRequest {
     pub file: String,
@@ -33,7 +32,6 @@ pub struct FileUploadResponse {
     pub purpose: String,
 }
 
-
 #[derive(Debug, Serialize)]
 pub struct FileDeleteRequest {
     pub file_id: String,
@@ -61,7 +59,6 @@ pub struct FileRetrieveResponse {
     pub purpose: String,
 }
 
-
 #[derive(Debug, Serialize)]
 pub struct FileRetrieveContentRequest {
     pub file_id: String,
diff --git a/src/v1/image.rs b/src/v1/image.rs
index ac7cc4e..9e03a43 100644
--- a/src/v1/image.rs
+++ b/src/v1/image.rs
@@ -1,9 +1,9 @@
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 use std::option::Option;
 
 #[derive(Debug, Deserialize)]
-pub struct ImageData{
-	pub url:  String,
+pub struct ImageData {
+    pub url: String,
 }
 
 #[derive(Debug, Serialize)]
@@ -19,11 +19,10 @@ pub struct ImageGenerationRequest {
     pub user: Option<String>,
 }
 
-
 #[derive(Debug, Deserialize)]
 pub struct ImageGenerationResponse {
     pub created: i64,
-    pub data:   Vec<ImageData>,
+    pub data: Vec<ImageData>,
 }
 
 #[derive(Debug, Serialize)]
@@ -45,7 +44,7 @@ pub struct ImageEditRequest {
 #[derive(Debug, Deserialize)]
 pub struct ImageEditResponse {
     pub created: i64,
-    pub data:   Vec<ImageData>,
+    pub data: Vec<ImageData>,
 }
 
 #[derive(Debug, Serialize)]
@@ -64,5 +63,5 @@ pub struct ImageVariationRequest {
 #[derive(Debug, Deserialize)]
 pub struct ImageVariationResponse {
     pub created: i64,
-    pub data:   Vec<ImageData>,
+    pub data: Vec<ImageData>,
 }
diff --git a/src/v1/mod.rs b/src/v1/mod.rs
index 0c0728d..8c84b8a 100644
--- a/src/v1/mod.rs
+++ b/src/v1/mod.rs
@@ -1,9 +1,10 @@
 pub mod common;
 
+pub mod chat_completion;
 pub mod completion;
 pub mod edit;
-pub mod image;
 pub mod embedding;
 pub mod file;
+pub mod image;
 
 pub mod api;