input: Write a python function to manage customer data with insert and search operations.
  assert customer_data.search("Alice") == {"age": 30, "email": "alice@example.com"}
  assert customer_data.search("Bob") == {"age": 25, "email": "bob@example.com"}
  assert customer_data.search("Charlie") == None
output: class CustomerData:
      def __init__(self):
          self.data = {}
  
      def insert(self, name, age, email):
          self.data[name] = {"age": age, "email": email}
  
      def search(self, name):
          return self.data.get(name, None)
  
  customer_data = CustomerData()
  customer_data.insert("Alice", 30, "alice@example.com")
  customer_data.insert("Bob", 25, "bob@example.com")