public static AmazonLexRuntimeAsyncClientBuilder asyncBuilder() {
        return AmazonLexRuntimeAsyncClientBuilder.standard();
    }
Client for accessing Amazon Lex Runtime Service asynchronously. Each asynchronous method will return a Java Future
object representing the asynchronous operation; overloads which accept an {@code AsyncHandler} can be used to receive
notification when an asynchronous operation completes.
<p>
<p>
Amazon Lex provides both build and runtime endpoints. Each endpoint provides a set of operations (API). Your
conversational bot uses the runtime API to understand user utterances (user input text or voice). For example,
suppose a user says "I want pizza", your bot sends this input to Amazon Lex using the runtime API. Amazon Lex
recognizes that the user request is for the OrderPizza intent (one of the intents defined in the bot). Then Amazon
Lex engages in user conversation on behalf of the bot to elicit required information (slot values, such as pizza size
and crust type), and then performs fulfillment activity (that you configured when you created the bot). You use the
build-time API to create and manage your Amazon Lex bot. For a list of build-time operations, see the build-time API,
.
</p>
aws-java-sdk-lex/src/main/java/com/amazonaws/services/lexruntime/AmazonLexRuntimeAsyncClient.java