Is your feature request related to a problem? Please describe.
When PyCharm detects access to a missing field in a class, it offers to add this field.

For a pydantic model, this logic is currently broken.

Calling the intent on this example:

import pydantic

class M(pydantic.BaseModel):
    ...


def test_():
    m = M()
    assert m.new_field

leads to this code:

class M(pydantic.BaseModel):
    def __init__(__pydantic_self__, **data: Any):
        super().__init__(data)
        __pydantic_self__.new_field = None

Describe the solution you'd like
Intercept the call and add field like it would be done in a pydantic way:

from typing import Any

class M(pydantic.BaseModel):
    new_field: Any