This allows you to use uri-to-blob conversion in the Flow rather than during doc processing.

• Instead of processing input and query images separately, use one Executor to do them both.
• Saves you having to write a for loop to convert every image (since many encoders expect blobs).

from jina import Flow
	
f = Flow().add(uses='jinahub+docker://ImageUriToBlob')

from jina import Flow
	
f = Flow().add(uses='jinahub://ImageUriToBlob')

• To override __init__ args & kwargs, use .add(..., uses_with: {'key': 'value'})
• To override class metas, use .add(..., uses_metas: {'key': 'value})