docs: fixed download_blob_to_file example (#704)
docs: fixed download_blob_to_file example (#704)

* docs: fixed download_blob_to_file example

* Update google/cloud/storage/client.py

Co-authored-by: cojenco <59492448efbe6bfaf30c1225f2a4211235f3da2c@google.com>

Co-authored-by: cojenco <59492448efbe6bfaf30c1225f2a4211235f3da2c@google.com>
googleapis/python-storage,googleapis/python-storage