code: def cublasDsymm(handle, side, uplo, m, n, alpha, A, lda, B, ldb, beta, C, ldc):
      
      
      status = _libcublas.cublasDsymm_v2(handle,
                                         _CUBLAS_SIDE_MODE[side], 
                                         _CUBLAS_FILL_MODE[uplo],
                                         m, n, ctypes.byref(ctypes.c_double(alpha)),
                                         int(A), lda, int(B), ldb, 
                                         ctypes.byref(ctypes.c_double(beta)), 
                                         int(C), ldc)
      cublasCheckStatus(status)
docs: Matrix-matrix product for real symmetric matrix.