def import_plugin(path_or_url)
      raise "`import_plugin` requires a string" unless path_or_url.kind_of?(String)

      if path_or_url.start_with?("http")
        import_url(path_or_url)
      else
        import_local(path_or_url)
      end
    end
def import_plugin(path_or_url)
      raise "`import_plugin` requires a string" unless path_or_url.kind_of?(String)

      if path_or_url.start_with?("http")
        import_url(path_or_url)
      else
        import_local(path_or_url)
      end
    end
@!group Danger
 Download a local or remote plugin and make it usable inside the Dangerfile.

 @param    [String] path_or_url
           a local path or a https URL to the Ruby file to import
           a danger plugin from.
 @return   [void]