deltachat::receive_imf

Function lookup_or_create_adhoc_group

Source 
async fn lookup_or_create_adhoc_group(
    context: &Context,
    mime_parser: &MimeMessage,
    to_ids: &[Option<ContactId>],
    from_id: ContactId,
    allow_creation: bool,
    create_blocked: Blocked,
    is_partial_download: bool,
) -> Result<Option<(ChatId, Blocked)>>