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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 find_remote(self, default=False, name=None, role=None):
 """ Find a remote repository connected to the local repository. :param default: :data:`True` to only look for default remotes, :data:`False` otherwise. :param name: The name of the remote to look for (a string or :data:`None`). :param role: A role that the remote should have (a string or :data:`None`). :returns: A :class:`Remote` object or :data:`None`. """

        for remote in self.known_remotes:
            if ((remote.default if default else True) and
                    (remote.name == name if name else True) and
                    (role in remote.roles if role else True)):
                return remote