pub unsafe extern "system" fn WsWriteXmlBufferToBytes(
    writer: *const WS_XML_WRITER,
    xmlbuffer: *const WS_XML_BUFFER,
    encoding: *const WS_XML_WRITER_ENCODING,
    properties: *const WS_XML_WRITER_PROPERTY,
    propertycount: u32,
    heap: *const WS_HEAP,
    bytes: *mut *mut c_void,
    bytecount: *mut u32,
    error: *const WS_ERROR,
) -> HRESULT