text: class Demo:
      def __init__(self, num1=None, num2=None,num3 = None):
          print('It is a constructor where we can pass 0, 1, 2 or 3 arguments based on the need')
  
  mobj = Demo() # No arguments
  mobj = Demo(1) # 1 argument
  mobj = Demo(1,2) # 2 arguments
  mobj = Demo(1,2,3) # 3 arguments
  