public EncryptionContractConfiguration withPresetSpeke20Audio(String presetSpeke20Audio) {
        setPresetSpeke20Audio(presetSpeke20Audio);
        return this;
    }
A collection of audio encryption presets.

@param presetSpeke20Audio
       A collection of audio encryption presets.
@return Returns a reference to this object so that method calls can be chained together.
@see PresetSpeke20Audio
aws-java-sdk-mediapackage/src/main/java/com/amazonaws/services/mediapackage/model/EncryptionContractConfiguration.java