from abc import abstractmethod, ABC

from pydantic import BaseModel, ConfigDict


class _StrictModel(BaseModel):
    # Required for OpenAI strict JSON-schema mode: forbids extra keys,
    # no defaults, every field required.
    model_config = ConfigDict(extra="forbid")


'''
A contract between agents
'''
class BaseContract(BaseModel):
    def to_prompt_text(self) -> str:
        pass

    def render_dbg(self) -> str:
        pass

    def is_filled(self) -> bool:
        pass