def inspect
      attribute_descriptions = attributes.sort.map { |key, value| "#{key}: #{value.inspect}" }.join(", ")
      separator = " " unless attribute_descriptions.empty?
      "#<#{self.class.name}#{separator}#{attribute_descriptions}>"
    end
def inspect
      attribute_descriptions = attributes.sort.map { |key, value| "#{key}: #{value.inspect}" }.join(", ")
      separator = " " unless attribute_descriptions.empty?
      "#<#{self.class.name}#{separator}#{attribute_descriptions}>"
    end
Returns the class name plus its attributes

 @example Inspect the model.
   person.inspect

 @return [String] Human-readable presentation of the attribute
   definitions

 @since 0.2.0