public <T> DrawableTypeRequest<T> load(T model) {
        return (DrawableTypeRequest<T>) loadGeneric(getSafeClass(model)).load(model);
    }
Returns a request builder that uses the {@link com.bumptech.glide.load.model.ModelLoaderFactory}s currently
registered for the given model class for {@link InputStream}s and {@link ParcelFileDescriptor}s to load a
thumbnail from either the image or the video represented by the given model.

<p>
    Note - for maximum efficiency, consider using {@link #from(Class)}} to avoid repeatedly allocating builder
    objects.
</p>

@see #from(Class)

@param model The model the load.
@param <T> The type of the model to load.
core/src/main/java/com/bumptech/glide/RequestManager.java