public void setIdentityValidationExpression(String identityValidationExpression) {
        this.identityValidationExpression = identityValidationExpression;
    }
<p>
This parameter is not used.
</p>

@param identityValidationExpression
       This parameter is not used.
aws-java-sdk-apigatewayv2/src/main/java/com/amazonaws/services/apigatewayv2/model/CreateAuthorizerRequest.java