AWS S3 for Asyncy

# usage.story
result = s3 ls s3://bucket/path

for file in result
  print file.path

>>> filename.txt

Name		Name	Last commit message	Last commit date
Latest commit History 14 Commits
.github/workflows		.github/workflows
Dockerfile		Dockerfile
LICENSE		LICENSE
README.md		README.md
entrypoint.sh		entrypoint.sh
install.sh		install.sh
oms.yml		oms.yml
output.py		output.py

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