Support inheritance when generating TS interfaces

[guaycuru]

Currently if I have

class ChildClass(ParentClass):
  something: str

class ParentClass(BaseModel):
  anything: str

The generated output is:

export interface ChildClass {
  something: string;
  anything: string;
}

export interface ParentClass {
  anything: string;
}

When a better output would be:

export interface ChildClass extends ParentClass {
  something: string;
}

export interface ParentClass {
  anything: string;
}

It seems https://github.com/bcherny/json-schema-to-typescript supports this. See this example.