code: def test_timestamp_one_arg_no_arg(self):
      no_arg = self.factory.get(1406430900).timestamp()
      one_arg = self.factory.get("1406430900", "X").timestamp()
  
      assert no_arg == one_arg
  
imports: import time
  from datetime import date, datetime
  from decimal import Decimal
  import pytest
  from dateutil import tz
  from arrow import Arrow
  from arrow.parser import ParserError
  from .utils import assert_datetime_equality
label_desc: Use image node_id 2 for calling the TestGet obj's underlying member method code with example usage: obj.test_timestamp_one_arg_no_arg() without return types