code: private void addExportMethod(Map<String, Node> exports, String export, Node context) {
      // We can export as a property if any of the following conditions holds:
      // a) ES6 class members, which the above `addExportForEs6Method` handles
      // b) this is a property on a name which is also being exported
      // c) this is a prototype property
      String methodOwnerName = null; // the object this method is on, null for exported names.
      boolean isEs5StylePrototypeAssignment = false; // If this is a prototype property
      String propertyName = null;
  
      if (context.getFirstChild().isGetProp()) { // e.g. `/** @export */ a.prototype.b = obj;`
        Node node = context.getFirstChild(); // e.g. get `a.prototype.b`
        Node ownerNode = node.getFirstChild(); // e.g. get `a.prototype`
        methodOwnerName = ownerNode.getQualifiedName(); // e.g. get the string "a.prototype"
        if (ownerNode.isGetProp()
            && ownerNode.getLastChild().getString().equals(PROTOTYPE_PROPERTY)) {
          // e.g. true if ownerNode is `a.prototype`
          // false if this export were `/** @export */ a.b = obj;` instead
          isEs5StylePrototypeAssignment = true;
        }
        propertyName = node.getSecondChild().getString();
      }
  
      boolean useExportSymbol = true;
      if (isEs5StylePrototypeAssignment) {
        useExportSymbol = false;
      } else if (methodOwnerName != null && exports.containsKey(methodOwnerName)) {
        useExportSymbol = false;
      }
  
      if (useExportSymbol) {
        addExportSymbolCall(export, context);
      } else {
        addExportPropertyCall(methodOwnerName, context, export, propertyName);
      }
    }
docs: Emits a call to either goog.exportProperty or goog.exportSymbol.
  
  <p>Attempts to optimize by creating a property export instead of a symbol export, because
  property exports are significantly simpler/faster.
  
  @param export The fully qualified name of the object we want to export
  @param context The node on which the @export annotation was found