# File lib/dm-core/resource.rb, line 327
    def attributes=(attributes)
      model = self.model
      attributes.each do |name, value|
        case name
          when String, Symbol
            if model.allowed_writer_methods.include?(setter = "#{name}=")
              __send__(setter, value)
            else
              raise ArgumentError, "The attribute '#{name}' is not accessible in #{model}"
            end
          when Associations::Relationship, Property
            self.persistence_state = persistence_state.set(name, value)
        end
      end
    end