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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 apply_changes(self, other, with_buffer=False):
 """Applies updates from the buffer of another filter. Params: other (MeanStdFilter):
 Other filter to apply info from with_buffer (bool):
 Flag for specifying if the buffer should be copied from other. Examples: [2, 1.5, 2] [3, 4.333333333333333, 2] [4, 5.75, 1] """

        self.rs.update(other.buffer)
        if with_buffer:
            self.buffer = other.buffer.copy()