@CustomType.Setter
        public Builder expression(String expression) {
            if (expression == null) {
              throw new MissingRequiredPropertyException("Variable", "expression");
            }
            this.expression = expression;
            return this;
        }
@return Name is the name of the variable. The name must be a valid CEL identifier and unique among all variables. The variable can be accessed in other expressions through `variables` For example, if name is &#34;foo&#34;, the variable will be available as `variables.foo`
sdk/java/src/main/java/com/pulumi/kubernetes/admissionregistration/v1alpha1/outputs/Variable.java