pydantic json ignores None values

pydantic the json method provides exclude_none parameters to achieve this function

Code:

from typing import Optional
from pydantic import BaseModel, Field


class Tweets(BaseModel):
    id: int
    user_id: Optional[int]
    content: Optional[str] = Field(None)


print(
    Tweets(**{
        'id': 10,
        'user_id': None,
    }).json(ensure_ascii=False, exclude_none=True)
)

output:

{"id": 10, "user_id": null, "content": null}

Code:

from typing import Optional
from pydantic import BaseModel, Field


class Tweets(BaseModel):
    id: int
    user_id: Optional[int]
    content: Optional[str] = Field(None)


print(
    Tweets(**{
        'id': 10,
        'user_id': None,
    }).json(ensure_ascii=False)
)

output:

{"id": 10}