public void setPreferences(ChannelMembershipPreferences preferences) {
        this.preferences = preferences;
    }
<p>
The ARN and metadata of the member being added.
</p>

@param preferences
       The ARN and metadata of the member being added.
aws-java-sdk-chimesdkmessaging/src/main/java/com/amazonaws/services/chimesdkmessaging/model/PutChannelMembershipPreferencesResult.java