code: def GetArtifactParserDependencies(rdf_artifact):
    
    deps = set()
    processors = parser.Parser.GetClassesByArtifact(rdf_artifact.name)
    for p in processors:
      deps.update(p.knowledgebase_dependencies)
    return deps
docs: Return the set of knowledgebase path dependencies required by the parser.
  
    Args:
      rdf_artifact: RDF artifact object.
  
    Returns:
      A set of strings for the required kb objects e.g.
      ["users.appdata", "systemroot"]