UnityEditor.AssetServer.AssetIsBinaryByGUID C# (CSharp) Method

        public static extern bool AssetIsBinaryByGUID(string guid);
        [MethodImpl(MethodImplOptions.InternalCall)]

 private bool AtLeastOneSelectedAssetCanBeMerged()
 {
     for (int i = 0; i < this.downloadConflicts.Length; i++)
     {
         if (this.selectedLV1Items[i] && !AssetServer.AssetIsBinaryByGUID(this.downloadConflicts[i]) && !AssetServer.IsItemDeleted(this.downloadConflicts[i]))
         {
             return(true);
         }
     }
     return(false);
 }