code: func (s *PublicTxPoolAPI) Content() map[string]map[string]map[string]*RPCTransaction {
  	content := map[string]map[string]map[string]*RPCTransaction{
  		"pending": make(map[string]map[string]*RPCTransaction),
  		"queued":  make(map[string]map[string]*RPCTransaction),
  	}
  	pending, queue := s.b.TxPoolContent()
  
  	// Flatten the pending transactions
  	for account, txs := range pending {
  		dump := make(map[string]*RPCTransaction)
  		for _, tx := range txs {
  			dump[fmt.Sprintf("%d", tx.Nonce())] = newRPCPendingTransaction(tx)
  		}
  		content["pending"][account.Hex()] = dump
  	}
  	// Flatten the queued transactions
  	for account, txs := range queue {
  		dump := make(map[string]*RPCTransaction)
  		for _, tx := range txs {
  			dump[fmt.Sprintf("%d", tx.Nonce())] = newRPCPendingTransaction(tx)
  		}
  		content["queued"][account.Hex()] = dump
  	}
  	return content
  }
docs: // Content returns the transactions contained within the transaction pool.