src/vs/editor/contrib/parameterHints/parameterHintsModel.ts/ParameterHintsModel/onEditorConfigurationChange
class ParameterHintsModel:	private onEditorConfigurationChange(): void {
		this.triggerOnType = this.editor.getOption(EditorOption.parameterHints).enabled;

		if (!this.triggerOnType) {
			this.cancel();
		}
	}