code: def val(self, unit):
      # microsecond that would be just out of bounds for nano
      us = 9223372800000000
      if unit == NpyDatetimeUnit.NPY_FR_us.value:
          value = us
      elif unit == NpyDatetimeUnit.NPY_FR_ms.value:
          value = us // 1000
      else:
          value = us // 1_000_000
      return value
  
imports: from datetime import timedelta
  import sys
  from hypothesis import given, strategies
  import numpy
  import pytest
  from pandas._libs import lib
  from pandas._libs.tslibs import NaT, iNaT
  from pandas._libs.tslibs.dtypes import NpyDatetimeUnit
  from pandas.errors import OutOfBoundsTimedelta
  from pandas import Timedelta, to_timedelta
  import pandas._testing
label_desc: Use image node_id 3 for calling the TestNonNano obj's underlying member method code with example usage: obj.val(unit) and returns: value