public static AWSLambdaClientBuilder builder() {
        return AWSLambdaClientBuilder.standard();
    }
Constructs a new client to invoke service methods on AWS Lambda using the specified AWS account credentials
provider, client configuration options, and request metric collector.

<p>
All service calls made using this new client object are blocking, and will not return until the service call
completes.

@param awsCredentialsProvider
       The AWS credentials provider which will provide credentials to authenticate requests with AWS services.
@param clientConfiguration
       The client configuration options controlling how this client connects to AWS Lambda (ex: proxy settings,
       retry counts, etc.).
@param requestMetricCollector
       optional request metric collector
@deprecated use {@link AWSLambdaClientBuilder#withCredentials(AWSCredentialsProvider)} and
            {@link AWSLambdaClientBuilder#withClientConfiguration(ClientConfiguration)} and
            {@link AWSLambdaClientBuilder#withMetricsCollector(RequestMetricCollector)}
aws-java-sdk-lambda/src/main/java/com/amazonaws/services/lambda/AWSLambdaClient.java