Function parity_rpc::is_major_importing_or_waiting

pub fn is_major_importing_or_waiting(
    sync_state: Option<SyncState>, 
    queue_info: BlockQueueInfo, 
    waiting_is_syncing_state: bool
) -> bool

Check if client is during major sync or during block import and allows defining whether ‘waiting for peers’ should be considered a syncing state.