- edit_query: (integer) If true, edit a search query (contained in
'mailbox' parameter).
- edit_query_filter: (string) The name of the filter being edited.
- edit_query_vfolder: (string) The name of the virtual folder being
edited.
- mailbox: (string) Mailbox parameter.
- mailbox_list: (array) A list of mailboxes to process (base64url
encoded) If empty, uses 'mailbox' parameter.
- mboxes_form: (string) JSON representation of the list of mailboxes
for the query. Hash containing 2 keys: mbox &
subfolder. Both values are base64url encoded.
- search_label: (string) The label to use when saving the search.
- search_type: (string) The type of saved search ('filter',
'vfolder'). If empty, the search should not be saved.
- subfolder: (boolean) If set, search mailbox will default to
subfolder search.
