allow arbitary types

Remove the exception pydantic.exceptions.ConfigError: no validator found for <class 'Foobar'> and just require that any value provided is an instance of Foobar.

[samuelcolvin]

please read the documentation.

[dmontagu]

@mr-bjerre A ctrl+f for arbitrary_types_allowed on the pydantic docs should get you to the right place.

Here’s an demonstration that I believe should work (not tested):

from pydantic import BaseModel

class MyClass: 
    pass

class Model(BaseModel):
    v: MyClass

    class Config:
        arbitrary_types_allowed = True