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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 get_mutations_size(self):
 """ Gets the total mutations size for current row For example: .. literalinclude:: snippets_table.py :start-after: [START bigtable_row_get_mutations_size] :end-before: [END bigtable_row_get_mutations_size] """


        mutation_size = 0
        for mutation in self._get_mutations():
            mutation_size += mutation.ByteSize()

        return mutation_size