pub unsafe extern "C" fn graphene_quaternion_init_from_matrix(
q: *mut graphene_quaternion_t,
m: *const graphene_matrix_t
) -> *mut graphene_quaternion_t
pub unsafe extern "C" fn graphene_quaternion_init_from_matrix(
q: *mut graphene_quaternion_t,
m: *const graphene_matrix_t
) -> *mut graphene_quaternion_t