ace in java.lang">String</a>,<a href="http://d.android.com/reference/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;headers,
                             <a href="http://d.android.com/reference/android/support/annotation/NonNull.html?is-external=true" title="class or interface in android.support.annotation">@NonNull</a>
                             <a href="http://d.android.com/reference/java/net/URL.html?is-external=true" title="class or interface in jav