notmuch/lib/message-private.h, branch 0.23.5 thread-based email index, search, and tagging https://git.notmuchmail.org/git/notmuch/atom?h=0.23.5 2016-09-21T21:14:24Z lib: basic message-property API 2016-09-21T21:14:24Z David Bremner david@tethera.net 2016-06-13T01:05:50Z urn:sha1:b8bb6d796458732622f80464dd808b3e02f57d9d Initially, support get, set and removal of single key/value pair, as well as removing all properties.