dify/api/core/tools/utils/encoder.py

from pydantic import BaseModel
from enum import Enum
from typing import List

def serialize_base_model_array(l: List[BaseModel]) -> str:
    class _BaseModel(BaseModel):
        __root__: List[BaseModel]

    """
        {"__root__": [BaseModel, BaseModel, ...]}
    """
    return _BaseModel(__root__=l).json()

def serialize_base_model_dict(b: dict) -> str:
    class _BaseModel(BaseModel):
        __root__: dict

    """
        {"__root__": {BaseModel}}
    """
    return _BaseModel(__root__=b).json()