File size: 2,856 Bytes
c2f9396 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | from typing import List, Optional, Literal
from pydantic import BaseModel, Field
class ChatMessage(BaseModel):
"""Represents a single chat message."""
role: Literal["system", "user", "assistant"] = Field(..., description="Role of the message sender")
content: str = Field(..., description="Content of the message")
class Config:
json_schema_extra = {
"example": {
"role": "user",
"content": "Hello, how are you today?"
}
}
class ChatRequest(BaseModel):
"""Request model for chat completion."""
messages: List[ChatMessage] = Field(..., description="List of chat messages")
model: str = Field(default="llama-2-7b-chat", description="Model to use for generation")
max_tokens: int = Field(default=2048, ge=1, le=4096, description="Maximum tokens to generate")
temperature: float = Field(default=0.7, ge=0.0, le=2.0, description="Sampling temperature")
top_p: float = Field(default=0.9, ge=0.0, le=1.0, description="Top-p sampling parameter")
stream: bool = Field(default=True, description="Whether to stream the response")
class Config:
json_schema_extra = {
"example": {
"messages": [
{"role": "system", "content": "You are a helpful assistant."},
{"role": "user", "content": "Hello, how are you today?"}
],
"model": "llama-2-7b-chat",
"max_tokens": 100,
"temperature": 0.7,
"stream": True
}
}
class ChatResponse(BaseModel):
"""Response model for chat completion."""
id: str = Field(..., description="Unique response ID")
object: str = Field(default="chat.completion", description="Object type")
created: int = Field(..., description="Unix timestamp of creation")
model: str = Field(..., description="Model used for generation")
choices: List[dict] = Field(..., description="Generated choices")
usage: Optional[dict] = Field(None, description="Token usage statistics")
class ModelInfo(BaseModel):
"""Model information response."""
id: str = Field(..., description="Model ID")
object: str = Field(default="model", description="Object type")
created: int = Field(..., description="Unix timestamp of creation")
owned_by: str = Field(default="huggingface", description="Model owner")
class ErrorResponse(BaseModel):
"""Error response model."""
error: dict = Field(..., description="Error details")
class Config:
json_schema_extra = {
"example": {
"error": {
"message": "Invalid request parameters",
"type": "invalid_request_error",
"code": 400
}
}
}
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