public DynamoDBAction withHashKeyType(DynamoKeyType hashKeyType) {
        this.hashKeyType = hashKeyType.toString();
        return this;
    }
<p>
The hash key type. Valid values are "STRING" or "NUMBER"
</p>

@param hashKeyType
       The hash key type. Valid values are "STRING" or "NUMBER"
@return Returns a reference to this object so that method calls can be chained together.
@see DynamoKeyType
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/DynamoDBAction.java