input: from typing import List
  
  def print_customer_data(name: str) -> None:
      """
      This function searches through customer data for a customer with the given name and prints the results.
      
      >>> print_customer_data("Alice")
      Name: Alice, Age: 29, Address: 123 Maple St
      >>> print_customer_data("Bob")
      Name: Bob, Age: 34, Address: 456 Oak St
      """
      # Code for searching customer data by customer name and 
      # printing results 
      ...
    
  # Main function for the customer search application
  if __name__=="__main__": 
      # Get command line arguments 
      args = sys.argv 
      
      if len(args) == 2: 
          name = args[1]
          print_customer_data(name) 
      else: 
          print("Invalid arguments, please specify a customer name.")
output:     customer_data = {
          "Alice": {"Age": 29, "Address": "123 Maple St"},
          "Bob": {"Age": 34, "Address": "456 Oak St"}
      }
      
      if name in customer_data:
          customer = customer_data[name]
          print(f"Name: {name}, Age: {customer['Age']}, Address: {customer['Address']}")
      else:
          print(f"Customer {name} not found.")