<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def default_formatters(self):
 """Default locator of the axis of the colorbars"""

        if self._default_formatters:
            return self._default_formatters
        else:
            self.set_default_formatters()
        return self._default_formatters