Just follow the given help:
python imap2ews.py
usage: imap2ews.py [-h] [-v | -q] [--echo-ews]
--imap-server IMAP_SERVER
[--imap-port IMAP_PORT]
--imap-username IMAP_USERNAME
--imap-password IMAP_PASSWORD
--imap-inbox IMAP_INBOX
--ews-server EWS_SERVER
--ews-primary-smtp-address EWS_PRIMARY_SMTP_ADDRESS
--ews-username EWS_USERNAME
--ews-password EWS_PASSWORD
imap2ews.py: error: the following arguments are required: --imap-server, --imap-username, --imap-password, --imap-inbox, --ews-server, --ews-primary-smtp-address, --ews-username, --ews-password
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