docs: def get_plugin(self, name):
          """
          Get the plugin named ``name``. If no such plugin is currently active, try to activate a new
          one using the current preset.
          """
          if name in self._active_plugins:
              return self._active_plugins[name]
  
          elif self.has_plugin_preset:
              plugin_cls = self._active_preset.request_plugin(name)
              plugin = self._init_plugin(plugin_cls)
  
              # Remember that this plugin was provided by preset.
              self._provided_by_preset.append(id(plugin))
  
              self.register_plugin(name, plugin)
              return plugin
  
          else:
              raise AngrNoPluginError("No such plugin: %s" % name)