add appropriate swagger definitions

routers/api/v1/swagger/options.go

@@ -230,4 +230,13 @@ type swaggerParameterBodies struct {
 
 	// in:body
 	LockIssueOption api.LockIssueOption
+
+	// in:body
+	NewGroupOption api.NewGroupOption
+
+	// in:body
+	EditGroupOption api.EditGroupOption
+
+	// in:body
+	MoveGroupOption api.MoveGroupOption
 }

routers/api/v1/swagger/repo_group.go

@@ -0,0 +1,17 @@
+package swagger
+
+import api "code.gitea.io/gitea/modules/structs"
+
+// Group
+// swagger:response Group
+type swaggerResponseGroup struct {
+	// in:body
+	Body api.Group `json:"body"`
+}
+
+// GroupList
+// swagger:response GroupList
+type swaggerResponseGroupList struct {
+	// in:body
+	Body []api.Group `json:"body"`
+}