public SwiftNode getChild(SwiftDemangledNodeKind childKind) {
		return children.stream()
				.filter(child -> child.getKind().equals(childKind))
				.findFirst()
				.orElse(null);
	}
Gets the first direct child {@link SwiftNode} of the given 
{@link SwiftDemangledNodeKind kind}

@param childKind The {@link SwiftDemangledNodeKind kind} of child to get
@return The first direct child {@link SwiftNode} of the given 
  {@link SwiftDemangledNodeKind kind}, or null if one could not be found
Ghidra/Features/SwiftDemangler/src/main/java/ghidra/app/util/demangler/swift/nodes/SwiftNode.java