input: def customer_search_application():
      """Command-line application in Python that stores customer data and allows the user to query by 
      customer name. The application expects one command-line argument which is the customer name.
      If the argument is not provided or more than one argument is provided, the application prints 
      "Invalid arguments, please specify a customer name." If a valid customer name is provided, it 
      searches for the customer and if found, prints the customer data.
      
      Example:
      for customer_search_application() and command 'python script.py John':
      if 'John' is a valid customer name:
          prints "Name: John, Age: 30, City: New York" (example output)
      if 'John' is not a valid customer name:
          prints "Customer not found."
      for customer_search_application() and command 'python script.py':
      prints "Invalid arguments, please specify a customer name."
      """
output:     
      import sys
  
      if len(sys.argv) != 2:
          print("Invalid arguments, please specify a customer name.")
          return
  
      customer_name = sys.argv[1]
      customers = {
          "John": {"Name": "John", "Age": 30, "City": "New York"},
          "Alice": {"Name": "Alice", "Age": 25, "City": "Los Angeles"},
          "Bob": {"Name": "Bob", "Age": 35, "City": "Chicago"}
      }
  
      if customer_name in customers:
          customer_data = customers[customer_name]
          print(f"Name: {customer_data['Name']}, Age: {customer_data['Age']}, City: {customer_data['City']}")
      else:
          print("Customer not found.")
  