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from unittest.case import skip, skipIf
def generate_skip_decorator(bear):
"""
Creates a skip decorator for a `unittest` module test from a bear.
`check_prerequisites` is used to determine a test skip.
:param bear: The bear whose prerequisites determine the test skip.
:return: A decorator that skips the test if appropriate.
result = bear.check_prerequisites()
return skip(result) if isinstance(result, str) else skipIf(False, '')