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        (Deprecated: Use executor_work_guard.)
        Class to inform the io_context
        when it has work to do.
      
class work
| Name | Description | 
|---|---|
| Get the io_context associated with the work. | |
| (Deprecated: Use get_io_context().) Get the io_context associated with the work. | |
| Constructor notifies the io_context that work is starting. Copy constructor notifies the io_context that work is starting. | |
| Destructor notifies the io_context that the work is complete. | 
        The work class is used to inform the io_context
        when work starts and finishes. This ensures that the io_context
        object's run() function will not exit while work is underway,
        and that it does exit when there is no unfinished work remaining.
      
The work class is copy-constructible so that it may be used as a data member in a handler class. It is not assignable.
        Header: boost/asio/io_context.hpp
      
        Convenience header: boost/asio.hpp