text: #ifndef CUSTOMER_H
  #define CUSTOMER_H
  #include "bank_account.h"
  
  class Customer 
  {
  public:
  	Customer(BankAccount& act) : account(act) {}
  	BankAccount& get_account();
  private:
  	BankAccount& account;
  
  };
  
  #endif // !CUSTOMER_H
  