pub unsafe extern "C" fn igraph_bipartite_projection(
graph: *const igraph_t,
types: *const igraph_vector_bool_t,
proj1: *mut igraph_t,
proj2: *mut igraph_t,
multiplicity1: *mut igraph_vector_int_t,
multiplicity2: *mut igraph_vector_int_t,
probe1: igraph_int_t,
) -> igraph_error_t