input: Write a function to define a Python class named Person with the specified attributes and functions. The class should have attributes name (string), age (integer), and email (string). It should also include a function toString() that returns a string with the formatted attributes. 
  
  
  class Person:
      
      def __init__(self, name, age, email):
          self.name = name
          self.age = age
          self.email = email
      
      def toString(self):
          return f"Name: {self.name}, Age: {self.age}, Email: {self.email}"
  
  
  assert Person("Alice", 30, "alice@example.com").toString()=="Name: Alice, Age: 30, Email: alice@example.com"
  assert Person("Bob", 25, "bob@example.com").toString()=="Name: Bob, Age: 25, Email: bob@example.com"
  assert Person("Charlie", 40, "charlie@example.com").toString()=="Name: Charlie, Age: 40, Email: charlie@example.com"
  assert Person("David", 22, "david@example.com").toString()=="Name: David, Age: 22, Email: david@example.com"
  assert Person("Eve", 35, "eve@example.com").toString()=="Name: Eve, Age: 35, Email: eve@example.com"
output: 
  class Person:
      
      def __init__(self, name, age, email):
          self.name = name
          self.age = age
          self.email = email
      
      def toString(self):
          return f"Name: {self.name}, Age: {self.age}, Email: {self.email}"
  