input: Write a function named Person Class Definition to define a Python class named `Person` with attributes `name`, `age`, and `email`. Include an instance method `toString()` that returns a string formatted with these 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("John Doe", 30, "john.doe@example.com").toString() == "Name: John Doe, Age: 30, Email: john.doe@example.com"
  assert Person("Jane Smith", 25, "jane.smith@example.com").toString() == "Name: Jane Smith, Age: 25, Email: jane.smith@example.com"
  assert Person("Alice Johnson", 22, "alice.johnson@gmail.com").toString() == "Name: Alice Johnson, Age: 22, Email: alice.johnson@gmail.com"
  assert Person("Bob Brown", 45, "bob.brown@hotmail.com").toString() == "Name: Bob Brown, Age: 45, Email: bob.brown@hotmail.com"
  assert Person("Charlie Davis", 35, "charlie.davis@yahoo.com").toString() == "Name: Charlie Davis, Age: 35, Email: charlie.davis@yahoo.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}"