def assign_attributes(new_attributes)
      if !new_attributes.respond_to?(:stringify_keys)
        raise ArgumentError, "When assigning attributes, you must pass a hash as an argument."
      end
      return if new_attributes.nil? || new_attributes.empty?

      attributes = new_attributes.stringify_keys
      _assign_attributes(attributes)
    end
def assign_attributes(new_attributes)
      if !new_attributes.respond_to?(:stringify_keys)
        raise ArgumentError, "When assigning attributes, you must pass a hash as an argument."
      end
      return if new_attributes.nil? || new_attributes.empty?

      attributes = new_attributes.stringify_keys
      _assign_attributes(attributes)
    end
Allows you to set all the attributes by passing in a hash of attributes with
 keys matching the attribute names.

   class Cat
     include Assignment::Attributes
     attr_accessor :name, :status
   end

   cat = Cat.new
   cat.assign_attributes(name: "Gorby", status: "yawning")
   cat.name # => 'Gorby'
   cat.status => 'yawning'
   cat.assign_attributes(status: "sleeping")
   cat.name # => 'Gorby'
   cat.status => 'sleeping'