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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 run_command(self, args=None, node_paths=None):
 """Returns a command that when executed will run an arbitury command via package manager."""

    return command_gen(
      self.tool_installations,
      self.name,
      args=args,
      node_paths=node_paths
    )