001package org.hl7.fhir.r4.fhirpath;
002
003import org.hl7.fhir.r4.model.Base;
004
005import java.util.List;
006
007public abstract class FHIRPathFunctionDefinition {
008  public abstract String name();
009
010  public abstract FHIRPathUtilityClasses.FunctionDetails details();
011
012  public abstract TypeDetails check(FHIRPathEngine engine, Object appContext, TypeDetails focus, List<TypeDetails> parameters);
013
014  public abstract List<Base> execute(FHIRPathEngine engine, Object appContext, List<Base> focus, List<List<Base>> parameters);
015}