pub unsafe extern "C" fn rsb_load_spblas_matrix_file_as_matrix_market(
filename: *const rsb_char_t,
typecode: rsb_type_t
) -> blas_sparse_matrix
pub unsafe extern "C" fn rsb_load_spblas_matrix_file_as_matrix_market(
filename: *const rsb_char_t,
typecode: rsb_type_t
) -> blas_sparse_matrix