class_docstr: PostgreSQL INTERVAL type.
class_docstr_tok: ["PostgreSQL","INTERVAL","type","."]
code: def _type_affinity(self) -> Type[sqltypes.Interval]:
      return sqltypes.Interval
  
imports: from __future__ import annotations
  import datetime
  from typing import Any
  from typing import Optional
  from typing import overload
  from typing import Type
  from typing import TYPE_CHECKING
  from uuid import UUID
  from ...sql import sqltypes
  from ...sql import type_api
  from ...util.typing import Literal
label_desc: Use image node_id 3 for calling the INTERVAL obj's underlying member method code with example usage: obj._type_affinity() and returns: sqltypes