Function fastly_sys::xqd_resp_header_value_get

#[no_mangle]pub unsafe extern "C" fn xqd_resp_header_value_get(
    resp_handle: ResponseHandle, 
    name: *const u8, 
    name_len: usize, 
    value: *mut u8, 
    value_max_len: usize, 
    nwritten: *mut usize
) -> XqdStatus