public SdkRequestConfig build() {
            return new SdkRequestConfig(httpRequestTimeout,
                                        totalExecutionTimeout,
                                        customHeaders,
                                        customQueryParams);
        }
Builds the {@link SdkRequestConfig} with the current state of the builder.

@return Immutable {@link SdkRequestConfig} object. See {@link BaseRequest#sdkRequestConfig(SdkRequestConfig)}.
aws-java-sdk-opensdk/src/main/java/com/amazonaws/opensdk/SdkRequestConfig.java