def collect_all_bucket_keys(self):
if len(self.childs) == <NUM_LIT:0>:<EOL><INDENT>return [self.bucket_key]<EOL><DEDENT>result = []<EOL>for child in self.childs.values():<EOL><INDENT>result = result + child.collect_all_bucket_keys()<EOL><DEDENT>return result<EOL>
Just collects all buckets keys from subtree