Static Method Not Reflecting Instance-Specific Argument in Dynamically Created ModelSchema Class

[Alex-Sichkar]

Description:
I encountered an issue with dynamically creating schema classes where a static method within the class does not reflect an instance-specific argument. Below is the code snippet illustrating the problem:

class get_some_schema(a=False):
    class SomeSchema(ModelSchema):
        class Meta:
            model = SomeModel
            fields = ['some_field']

           @staticmethod
           def resolve_some_field(obj):
               print(f"{a=}")
               return "resolved field"

Steps to Reproduce:

1. Instantiate the schema class with different arguments:

s1 = get_some_schema()
s2 = get_some_schema(True)

2. Call the resolve_some_field method on both instances:

s1.resolve_some_field(None)  # Outputs: a=False
s2.resolve_some_field(None)  # Outputs: a=False (expected: a=True)

Versions (please complete the following information):

• Python version: 3.12
• Django version: 4.2.11
• Django-Ninja version: 1.1.0
• Pydantic version: 2.7.2