### Functional of core module
1. Models
   - [x] List models
   - [x] Retrieve model
2. Chat
   - [x] Create chat completion
3. Completion
   - [x] Create completion
4. Edits
   - [x] Create edit
5. Images
   - [x] Create image
   - [x] Create image edit
   - [x] Create image variation
6. Embeddings
   - [x] Create embedding
7. Audio
   - [x] Create transcription
   - [x] Create translation
8. Files
   - [x] List files
   - [x] Upload file
   - [x] Delete file
   - [x] Retrive file
   - [x] Retrive file content
9. Fine-tunes
   - [x] Create fine-tune
   - [x] List fine-tunes
   - [x] Retrive fine-tune
   - [x] Cancel fine-tune
   - [x] List fine-tune events
   - [x] Delete fine-tune model
10. Moderations
   - [x] Create moderation