protected Namespace getLibraryScope(String libraryName) {
		Symbol s = program.getSymbolTable().getLibrarySymbol(libraryName);
		if (s instanceof LibrarySymbol) {
			return (Namespace) s.getObject();
		}
		return null;
	}
Tests for the symbol tree plugin.
Ghidra/Features/Base/src/test.slow/java/ghidra/app/plugin/core/symboltree/AbstractSymbolTreePluginExternalsTest.java