code: def __enter__(self):
      self.assign_variable = _current_build_context.with_value(self)
      self.assign_variable.__enter__()
      return self
  
imports: import math
  from collections import defaultdict
  from typing import NoReturn, Union
  from weakref import WeakKeyDictionary
  from hypothesis import Verbosity, settings
  from hypothesis._settings import note_deprecation
  from hypothesis.errors import InvalidArgument, UnsatisfiedAssumption
  from hypothesis.internal.compat import BaseExceptionGroup
  from hypothesis.internal.conjecture.data import ConjectureData
  from hypothesis.internal.reflection import get_pretty_function_description
  from hypothesis.internal.validation import check_type
  from hypothesis.reporting import report, verbose_report
  from hypothesis.utils.dynamicvariables import DynamicVariable
  from hypothesis.vendor.pretty import IDKey
label_desc: Use image node_id 4 for calling the BuildContext obj's underlying member method code with example usage: obj.__enter__() and returns: self