public ImageDecoderConfig build() {
      return new ImageDecoderConfig(this);
    }
Use a different decoder for an existing image format. This can be used for example to set a
custom decoder for any of the {@link com.facebook.imageformat.DefaultImageFormats}

@param imageFormat the existing image format
@param decoder the decoder to use
@return the builder
imagepipeline/src/main/java/com/facebook/imagepipeline/decoder/ImageDecoderConfig.java