serialize Engine.serialize_matrix_multiplication_key(matrix_multiplication_key) Serializes a matrix multiplication key. Input: MatrixMultiplicationKey Output: bytearray from desilofhe import Engine engine = Engine(slot_count=64) secret_key = engine.create_secret_key() matrix_multiplication_key = engine.create_matrix_multiplication_key(secret_key) serialized_matrix_multiplication_key = ( engine.serialize_matrix_multiplication_key(matrix_multiplication_key) )