extensions/typescript-language-features/src/languageFeatures/codeLens/implementationsCodeLens.ts/TypeScriptImplementationsCodeLensProvider/getCommand
class TypeScriptImplementationsCodeLensProvider:	private getCommand(locations: vscode.Location[], codeLens: ReferencesCodeLens): vscode.Command | undefined {
		return {
			title: this.getTitle(locations),
			command: locations.length ? 'editor.action.showReferences' : '',
			arguments: [codeLens.document, codeLens.range.start, locations]
		};
	}