code: def __init__(self, start, end):
      assert isinstance(start, int) or start is None
      assert isinstance(end, int) or end is None
      assert start is None or end is None or start <= end
      self.start = start
      self.end = end
  
imports: import math
  from decimal import Decimal
  from fractions import Fraction
  from typing import Literal, Optional, Union
  from hypothesis.control import reject
  from hypothesis.errors import InvalidArgument
  from hypothesis.internal.filtering import get_float_predicate_bounds, get_integer_predicate_bounds
  from hypothesis.internal.floats import SMALLEST_SUBNORMAL, float_of, float_to_int, int_to_float, is_negative, next_down, next_down_normal, next_up, next_up_normal, width_smallest_normals
  from hypothesis.internal.validation import check_type, check_valid_bound, check_valid_interval
  from hypothesis.strategies._internal.misc import nothing
  from hypothesis.strategies._internal.strategies import SampledFromStrategy, SearchStrategy
  from hypothesis.strategies._internal.utils import cacheable, defines_strategy
label_desc: Use image node_id 1 to create a new IntegersStrategy object from inherited base classes: SearchStrategy with example: obj = IntegersStrategy(start, end)