private static EvaluationContext initContext() {
        
        EvaluationContext context = SimpleEvaluationContext
                .forPropertyAccessors(DataBindingPropertyAccessor.forReadOnlyAccess(), new MapAccessor())
                .build();
        
        EvaluationContextUtil.init(context);
        return context;
    }
The simplified version of the SEPL parsing implementation does not support write function execution.

@see SimpleEvaluationContext
@see DataBindingPropertyAccessor#forReadOnlyAccess()
shenyu-plugin/shenyu-plugin-mock/src/main/java/org/apache/shenyu/plugin/mock/generator/ExpressionGenerator.java