Error code standardization

internal/common/check/conversation.go

@@ -0,0 +1,15 @@
+package check
+
+import (
+	discoveryRegistry "Open_IM/pkg/discoveryregistry"
+	pbConversation "Open_IM/pkg/proto/conversation"
+	"context"
+)
+
+type ConversationChecker struct {
+	zk discoveryRegistry.SvcDiscoveryRegistry
+}
+
+func (c *ConversationChecker) ModifyConversationField(ctx context.Context, req *pbConversation.ModifyConversationFieldReq) (resp *pbConversation.ModifyConversationFieldResp, err error) {
+	return
+}