Sending multipart as describe in the README doesn't seem to work.

It appears this might not have been implemented, or am I doing it wrong?

token.post('documents/%s' % id, documentType = 'other', file = ('rollbar.png', open('rollbar.png', 'rb'), 'image/png'))

Results in:

TypeError: <open file 'rollbar.png', mode 'rb' at 0x10c6ea4b0> is not JSON serializable

And

token.post('documents/%s' % id, documentType = 'other', file = ('rollbar.png', open('rollbar.png', 'rb').read(), 'image/png'))

Results in:

UnicodeDecodeError: 'utf8' codec can't decode byte 0x89 in position 0: invalid start byte

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