[WAHA] Add poll meta attrs in sendNewsletter

Author: devlikepro

send.go

@@ -670,10 +670,21 @@ func (cli *Client) sendNewsletter(
 			plaintextNode.Attrs["mediatype"] = mediaType
 		}
 	}
+	content := []waBinary.Node{}
+	if attrs["type"] == "poll" {
+		content = append(content, waBinary.Node{
+			Tag: "meta",
+			Attrs: waBinary.Attrs{
+				"polltype":    "creation",
+				"contenttype": "text",
+			},
+		})
+	}
+	content = append(content, plaintextNode)
 	node := waBinary.Node{
 		Tag:     "message",
 		Attrs:   attrs,
-		Content: []waBinary.Node{plaintextNode},
+		Content: content,
 	}
 	start = time.Now()
 	data, err := cli.sendNodeAndGetData(node)