old_contents: __version__ = '0.0.1.beta3'
  
  from doubles.class_double import ClassDouble  # noqa
  from doubles.instance_double import InstanceDouble  # noqa
  from doubles.object_double import ObjectDouble  # noqa
  from doubles.targets.allowance_target import allow  # noqa
  from doubles.targets.expectation_target import expect  # noqa
  from doubles.lifecycle import teardown, verify, no_builtin_verification  # noqa
  
new_contents: __version__ = '1.0.0'
  
  from doubles.class_double import ClassDouble  # noqa
  from doubles.instance_double import InstanceDouble  # noqa
  from doubles.object_double import ObjectDouble  # noqa
  from doubles.targets.allowance_target import allow  # noqa
  from doubles.targets.expectation_target import expect  # noqa
  from doubles.lifecycle import teardown, verify, no_builtin_verification  # noqa
  
subject: Bump version to 1.0.0.