coder</A></CODE></B></DD>
<DD>Returns an ID identifying any transformation this encoder may apply to the given data that will be mixed in to
 the cache key.

 <p>
     If the encoder does not transform the data in a way that significantly affects the cached result (ie performs
     no unusual compression or downsampling) an empty string is an appropriate id.
 </p>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../com/bumptech/glide/load/Encoder.html#getId()">getId</A></CODE> in interfac