original_docstring: 
      give a like to a product
      :param _id: product id
      :return: confirmation message
      
docstring: give a like to a product
docstring_tokens: give a like to a product
code: def post(_id):
      """
      give a like to a product
      :param _id: product id
      :return: confirmation message
      """
      return ProductLikeController().like(_id, db)
code_tokens: def post ( _id ) : return ProductLikeController ( ) . like ( _id , db )
short_docstring: give a like to a product
short_docstring_tokens: give a like to a product
comment: """
      give a like to a product
      :param _id: product id
      :return: confirmation message
      """