/**
* <summary>
* Returns the number of elapsed milliseconds between the module power on and the last observed
* detection (the input contact transitioned from absent to present).
* <para>
* </para>
* <para>
* </para>
* </summary>
* <returns>
* an integer corresponding to the number of elapsed milliseconds between the module power on and the last observed
* detection (the input contact transitioned from absent to present)
* </returns>
* <para>
* On failure, throws an exception or returns <c>YProximity.LASTTIMEAPPROACHED_INVALID</c>.
* </para>
*/
public long get_lastTimeApproached()
{
if (_func == null)
{
throw new YoctoApiProxyException("No Proximity connected");
}
return(_func.get_lastTimeApproached());
}