[docs]classSnowflake(SQL):"""Description"""type_name:str=Field(default="Snowflake",allow_mutation=False)@validator("type_name")defvalidate_type_name(cls,v):ifv!="Snowflake":raiseValueError("must be Snowflake")returnvdef__setattr__(self,name,value):ifnameinSnowflake._convenience_properties:returnobject.__setattr__(self,name,value)super().__setattr__(name,value)_convenience_properties:ClassVar[List[str]]=[]