Function xcb_poly_line_checked 

pub unsafe extern "C" fn xcb_poly_line_checked(
    c: *mut xcb_connection_t,
    coordinate_mode: u8,
    drawable: xcb_drawable_t,
    gc: xcb_gcontext_t,
    points_len: u32,
    points: *const xcb_point_t,
) -> xcb_void_cookie_t