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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def match_file(self, file, separators=None):
 		""" 		Matches the file to this path-spec. 		*file* (:class:`str`) is the file path to be matched against 		:attr:`self.patterns <PathSpec.patterns>`. 		*separators* (:class:`~collections.abc.Collection` of :class:`str`) 		optionally contains the path separators to normalize. See 		:func:`~pathspec.util.normalize_file` for more information. 		Returns :data:`True` if *file* matched; otherwise, :data:`False`. 		"""

		norm_file = util.normalize_file(file, separators=separators)
		return util.match_file(self.patterns, norm_file)