package com.google.android.exoplayer2.offline; import java.io.IOException; public interface WritableDownloadIndex extends DownloadIndex { void putDownload(Download download) throws IOException; void removeDownload(String str) throws IOException; void setDownloadingStatesToQueued() throws IOException; void setStatesToRemoving() throws IOException; void setStopReason(int i) throws IOException; void setStopReason(String str, int i) throws IOException; }Download file