Composite createComposite(PdbKind kind, String name) {
		if (kind == PdbKind.STRUCTURE) {
			return createStructure(name, 0);
		}
		else if (kind == PdbKind.UNION) {
			return createUnion(name);
		}
		throw new IllegalArgumentException("unsupported kind: " + kind);
	}
Checks if PDB has been loaded in the program

@return whether PDB has been loaded or not
Ghidra/Features/PDB/src/main/java/ghidra/app/util/bin/format/pdb/PdbParser.java