Changed - Have `flake8` check for docstrings in library functions and classes.
1.7.0
Added - Pipelines can now be called directly rather than through a `.run()` method; `.run()` still exists as an alias for backwards compatibility.
1.6.3
Fixed - `write_image` writes to a tempfile in a ".tmp" subdirectory in the output directory rather than in an arbitrary location to avoid issues when writing to a mounted volume.
1.6.2
Changed - `write_image` writes to a tempfile and then renames it to ensure that it does not create partial image files if writing is interrupted.
1.6.1
Changed - Downloads timeout after 5s by default if no response received.