class Calculator():
    '''Performs four mathematical operations
    Methods:
     add(number, number)
     subtract(number, number)
     multiply(number, number)
     divide(number,number)
    '''

    def add(self, number1, number2):
        '''Add two numbers 
        Arguments:
          number1 = any number
          number2 = any number
        '''

        return number1 + number2

    def subtract(self, number1, number2):
        '''Subtract number2 from number1
        Arguments:
          number1 = any number
          number2 = any number
        '''

        return number1 - number2

    def multiply(self, number1, number2):
        '''Multiply two numbers
        Arguments:
          number1 = any number
          number2 = any number
        '''

        return number1 * number2

    def divide(self, number1, number2):
        '''Divide number1 by number2
        Arguments:
          number1 = any number
          number2 = any number
        '''

        return number1 / number2