Gets the previous statistics sampled.
            the value is null if this is the first one or bounded by the history size.
            
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IVirtualMachineStatistics Previous { get; }
ReadOnly Property Previous As IVirtualMachineStatistics
property IVirtualMachineStatistics^ Previous { IVirtualMachineStatistics^ get (); }
/** @property */ IVirtualMachineStatistics get_Previous()
