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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_max_bitlen(self):
 """Returns total maximum bit length of the array, including length field if applicable."""

        payload_max_bitlen = self.max_size * self.value_type.get_max_bitlen()
        return {
            self.MODE_DYNAMIC: payload_max_bitlen + self.max_size.bit_length(),
            self.MODE_STATIC: payload_max_bitlen
        }[self.mode]