Function igraph_hsbm_game 

pub unsafe extern "C" fn igraph_hsbm_game(
    graph: *mut igraph_t,
    n: igraph_int_t,
    m: igraph_int_t,
    rho: *const igraph_vector_t,
    C: *const igraph_matrix_t,
    p: igraph_real_t,
) -> igraph_error_t