/** @page notify-signals Notification Signals

 @signals
  @signal displaying-userinfo
  @signal displaying-email-notification
  @signal displaying-emails-notification
 @endsignals

 @see notify.h

 @signaldef displaying-userinfo
  @signalproto
void (*displaying_userinfo)(PurpleAccount *account, const char *who, PurpleNotifyUserInfo *user_info);
  @endsignalproto
  @signaldesc
   Emitted before userinfo is handed to the UI to display.
   @a user_info can be manipulated via the PurpleNotifyUserInfo API in notify.c.
  @note
    If adding a PurpleNotifyUserInfoEntry, be sure not to free it -- PurpleNotifyUserInfo assumes responsibility for its objects.
  @param account   The account on which the info was obtained.
  @param who       The name of the buddy whose info is to be displayed.
  @param user_info The information to be displayed, as PurpleNotifyUserInfoEntry objects
 @endsignaldef

 @signaldef displaying-email-notification
  @signalproto
void (*displaying_email_notification)(const char *subject,
                                      const char *from,
                                      const char *to,
                                      const char *url);
  @endsignalproto
  @signaldesc
   Emitted before notification of a single email is handed to the UI to display.
  @param subject   Subject of email being notified of.
  @param from      Who the email is from.
  @param to        Who the email is to.
  @param url       A url to view the email.
  @since 2.1.0
 @endsignaldef

 @signaldef displaying-emails-notification
  @signalproto
void (*displaying_emails_notification)(const char **subjects,
                                       const char **froms,
                                       const char **tos,
                                       const char **urls,
                                       guint count);
  @endsignalproto
  @signaldesc
   Emitted before notification of multiple emails is handed to the UI to display.
  @param subjects   Subjects of emails being notified of.
  @param froms      Who the emails are from.
  @param tos        Who the emails are to.
  @param urls       The urls to view the emails.
  @param count      Number of emails being notified of.
  @since 2.1.0
 @endsignaldef

*/
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