[Python] How to fix - UserWarning: Pydantic serializer warnings in Pydantic V2?

Using datamodel-codegen command with JSON data as input type and generating Pydantic schema as output, during this process I was seeing warnings.

What is the meaning of these warnings and how to fix them? What kind of issues it can create(or why this is a warning)?

UserWarning:

Expected `Union[list[definition-ref], definition-ref, bool]` but got `JsonSchemaObject` - serialized value may not be as expected
Expected `Union[definition-ref, bool]` but got `JsonSchemaObject` - serialized value may not be as expected
Expected `Union[definition-ref, bool]` but got `JsonSchemaObject` - serialized value may not be as expected
Expected `Union[definition-ref, bool]` but got `JsonSchemaObject` - serialized value may not be as expected
return self.__pydantic_serializer__.to_python(


To reproduce:

pets.json

{
"pets": [
{
"name": "dog",
"age": 2
},
{
"name": "cat",
"age": 1
},
{
"name": "snake",
"age": 3,
"nickname": "python"
}
],
"status": 200
}


Command:

datamodel-codegen --input pets.json --input-file-type json --output model.py


Versions:

python - 3.11.4
pydantic==2.1.1
datamodel-code-generator==0.21.4
genson==1.2.2

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