public SwiftNode getRoot() {
		return root;
	}
Gets the root {@link SwiftNode} of the tree

@return The root {@link SwiftNode} of the tree.  Could be null if demangling finished 
  gracefully but did not return a result.
Ghidra/Features/SwiftDemangler/src/main/java/ghidra/app/util/demangler/swift/SwiftDemangledTree.java