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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 _coerce_dtype(self, other_dtype):
 """Possibly change the bin content type to allow correct operations with other operand. Parameters other_dtype : np.dtype or type """

        if self._dtype is None:
            new_dtype = np.dtype(other_dtype)
        else:
            new_dtype = np.find_common_type([self._dtype, np.dtype(other_dtype)], [])
        if new_dtype != self.dtype:
            self.set_dtype(new_dtype)