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Implement a public function named tokenize that accepts a SQL string (or byte string) and an optional…

Implement a public function named tokenize that accepts a SQL string (or byte string) and an optional…: a task in repo2rlenv-r2e (Harbor dataset). The function signature should be: python def tokenize(sql, encoding=None):

The task

The function signature should be: ```python def tokenize(sql, encoding=None): ```

Part of FineEnvs/repo2rlenv-r2e.