src/vs/editor/contrib/parameterHints/browser/parameterHintsWidget.ts/ParameterHintsWidget/show
class ParameterHintsWidget:	private show(): void {
		if (this.visible) {
			return;
		}

		if (!this.domNodes) {
			this.createParameterHintDOMNodes();
		}

		this.keyVisible.set(true);
		this.visible = true;
		setTimeout(() => {
			if (this.domNodes) {
				this.domNodes.element.classList.add('visible');
			}
		}, 100);
		this.editor.layoutContentWidget(this);
	}