public void setAuthorizerCredentialsArn(String authorizerCredentialsArn) {
        this.authorizerCredentialsArn = 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>

@param authorizerCredentialsArn
       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