public String getAuthorizerCredentialsArn() {
        return this.authorizerCredentialsArn;
    }
<p>
Specifies the required credentials as an IAM role for API Gateway to invoke the authorizer. To specify an IAM
role for API Gateway to assume, use the role's Amazon Resource Name (ARN). To use resource-based permissions on
the Lambda function, don't specify this parameter. Supported only for REQUEST authorizers.
</p>

@return Specifies the required credentials as an IAM role for API Gateway to invoke the authorizer. To specify an
        IAM role for API Gateway to assume, use the role's Amazon Resource Name (ARN). To use resource-based
        permissions on the Lambda function, don't specify this parameter. Supported only for REQUEST authorizers.
aws-java-sdk-apigatewayv2/src/main/java/com/amazonaws/services/apigatewayv2/model/CreateAuthorizerRequest.java