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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def GetPluginObjectByName(cls, plugin_name):
 """Retrieves a specific plugin object by its name. Args: plugin_name (str):
 name of the plugin. Returns: BasePlugin: a plugin object or None if not available. """

    plugin_class = cls._plugin_classes.get(plugin_name, None)
    if plugin_class:
      return plugin_class()

    return None