Couldn't find CelMutableExpr in repo here - https://github.com/google/cel-spec. So, believe this is an internal change.

PiperOrigin-RevId: 806154757

Author: CEL Dev Team

common/src/main/java/dev/cel/common/ast/CelMutableExpr.java

@@ -1034,6 +1034,10 @@ public static CelMutableExpr ofMap(long id, CelMutableMap mutableMap) {
     return new CelMutableExpr(id, mutableMap);
   }
 
+  public static CelMutableExpr ofComprehension(CelMutableComprehension mutableComprehension) {
+    return ofComprehension(0, mutableComprehension);
+  }
+
   public static CelMutableExpr ofComprehension(
       long id, CelMutableComprehension mutableComprehension) {
     return new CelMutableExpr(id, mutableComprehension);