Fix false DM build failure

src/douyin_im.py

@@ -84,7 +84,7 @@ EXPRESSION = r"""
       aweType: 700, type: 0, richTextInfos: [], text: p.text}));
     const result = await sendManager.sendMessage(builder);
     const message = builder.getMessage();
-    if (!message || typeof message.sendFunc !== 'function') fail('MESSAGE_BUILD_FAILED');
+    if (!message) fail('MESSAGE_BUILD_FAILED');
     let checkInfo = {};
     if (typeof result?.checkMsg === 'string' && result.checkMsg) {
       try { checkInfo = JSON.parse(result.checkMsg); } catch (_) { /* fixed fields below */ }

src/test_douyin_im.py

@@ -25,7 +25,7 @@ const sdk = {
     assert.equal(p.conversation, conversation);
     assert.equal(p.type, 7);
     assert.deepEqual(JSON.parse(p.content), {aweType:700,type:0,richTextInfos:[],text:TEXT});
-    return {sendFunc:()=>{}, sender:'54321', content:p.content, type:7};
+    return {sender:'54321', content:p.content, type:7};
   },
   sendMessage: async ({message}) => {
     sent++; message.serverId='42'; return {success:true,statusCode:0,checkCode:0};