Explore and Make use of Nationally Defined Messaging APIs

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<?xml version="1.0" encoding="UTF-8" standalone="no"?><SearchParameter xmlns="http://hl7.org/fhir">
   <id value="eRS-SlotAppointmentType-1"/>
   <url value="https://fhir.nhs.uk/STU3/SearchParameter/eRS-SlotAppointmentType-1"/>
   <version value="1.0.0"/>
   <name value="eRS Slot Appointment Type"/>
   <status value="draft"/>
   <date value="2020-07-07"/>
   <publisher value="NHS Digital"/>
      <name value="Interoperability Team"/>
         <system value="email"/>
         <value value="interoperabilityteam@nhs.net"/>
         <use value="work"/>
   <purpose value="This search parameter has been defined to enable the ability to search a slot appointment type."/>
   <code value="Slot.appointmentType"/>
   <base value="Slot"/>
   <type value="token"/>
   <description value="A search parameter to filter slots using the value in the appointment type."/>
   <expression value="Slot.appointmentType"/>
   <xpath value="f:Slot/f:appointmentType"/>
   <xpathUsage value="normal"/>
   <comparator value="eq"/>
   <modifier value="exact"/>