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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 _create_snippet_actions(self):
 """Add mock Qt actions for snippet keystrokes. Used to enable snippet mode. """

        # One action per allowed character.
        for i, char in enumerate(self._snippet_chars):

            def _make_func(char):
                def callback():
                    logger.log(5, "Snippet keystroke `%s`.", char)
                    self.command += char
                return callback

            self.actions.add(name='_snippet_{}'.format(i),
                             shortcut=char,
                             callback=_make_func(char))

        self.actions.add(name='_snippet_backspace',
                         shortcut='backspace',
                         callback=self._backspace)
        self.actions.add(name='_snippet_activate',
                         shortcut=('enter', 'return'),
                         callback=self._enter)
        self.actions.add(name='_snippet_disable',
                         shortcut='escape',
                         callback=self.mode_off)