Retrieve shifts

Shifts are retrtieved through a system-global operation called $findshifts-1. The operation is defined as follows - please view the parameters for invocation: https://simplifier.net/medico/operationdefinition-findshifts-1

The operation returns one instance of this profile: https://simplifier.net/medico/basic-calculatedshift-1 The effective information is inside the extension https://simplifier.net/medico/mxt-basic-calculatedshift-shiftinfo-1. Since the extenion's content can be repeated (cardinality for the extension is 0..n) - all shifts can be placed inside the returned resource instance.