code: def test_offset(self, offset, date, expected):
      assert_offset_equal(offset, date, expected)
  
imports: from __future__ import annotations
  from datetime import datetime
  import pytest
  from pandas.tests.tseries.offsets.common import assert_offset_equal
  from pandas.tseries.offsets import Easter
label_desc: Use image node_id 1 for calling the TestEaster obj's underlying member method code with example usage: obj.test_offset(offset, date, expected) without return types