input: from typing import List
  
  def search_customer(name: str, customers: List[str]) -> str:
      """Given a customer name and a list of customer strings, search for the customer and return the customer data as a string. If the customer is not found, return "Customer not found."
      
      >>> search_customer("John Doe", ["John Doe: 123-456-7890", "Jane Doe: 098-765-4321"])
      "John Doe: 123-456-7890"
      >>> search_customer("Alice", ["Bob: 111-222-3333", "Charlie: 444-555-6666"])
      "Customer not found."
      """
output:     for customer in customers:
          if name in customer:
              return customer
      return "Customer not found."