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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 sync_in(self, release):
 """Sync the canonical repo to our local working directory"""

        tree = release['canonical_dir']
        if os.path.exists(tree) and release.get('rsync_in_objs'):
            out = release['output_dir']
            if not os.path.isdir(out):
                self.log.info('Creating %s', out)
                os.makedirs(out)
            self.call(release['rsync_in_objs'])
            self.call(release['rsync_in_rest'])