code: func (provider *Provider) Close() {
  	provider.idStore.close()
  	provider.ledgerStoreProvider.Close()
  	provider.vdbProvider.Close()
  	provider.historydbProvider.Close()
  	provider.bookkeepingProvider.Close()
  	provider.configHistoryMgr.Close()
  }
docs: // Close implements the corresponding method from interface ledger.PeerLedgerProvider