mu4e-helpers.el contains a number of utility functions; we list a few here. See their docstrings for details:
mu4e-read-option: read one option from a list. For example:
(mu4e-read-option "Choose an animal: "
'(("Monkey" . monkey) ("Gnu" . gnu) ("xMoose" . moose)))
The user is presented with:
Choose an animal: [M]onkey, [G]nu, [x]Moose
mu4e-ask-maildir: ask for a maildir; try one of the
shortcuts (mu4e-maildir-shortcuts), or the full set of available
maildirs.
mu4e-running-p: return t if the mu4e process is
running, nil otherwise.
(mu4e-personal-address-p addr): return non-nil if addr is
one of the user’s e-mail addresses (as per (mu4e-personal-addresses)).
mu4e-log logs to the mu4e debugging log if it is enabled;
see mu4e-toggle-logging.
mu4e-message, mu4e-warn, mu4e-error are the
mu4e equivalents of the normal elisp message,
user-error and error functions.