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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 isignored(self, relpath, directory=False):
 """Returns True if path matches pants ignore pattern."""

    relpath = self._relpath_no_dot(relpath)
    if directory:
      relpath = self._append_trailing_slash(relpath)
    return self.ignore.match_file(relpath)