# File lib/guard/dsl.rb, line 523
    def scope(scopes = {})
      if ::Guard.options[:plugin].empty?
        ::Guard.options[:plugin] = [scopes[:plugin]] if scopes[:plugin]
        ::Guard.options[:plugin] = scopes[:plugins]  if scopes[:plugins]
      end

      if ::Guard.options[:group].empty?
        ::Guard.options[:group] = [scopes[:group]] if scopes[:group]
        ::Guard.options[:group] = scopes[:groups]  if scopes[:groups]
      end
    end