extensions/typescript-language-features/src/utils/typeConverters.ts/toProtocolCompletionTriggerKind
	export function toProtocolCompletionTriggerKind(kind: vscode.CompletionTriggerKind): Proto.CompletionTriggerKind {
		switch (kind) {
			case vscode.CompletionTriggerKind.Invoke: return 1;
			case vscode.CompletionTriggerKind.TriggerCharacter: return 2;
			case vscode.CompletionTriggerKind.TriggerForIncompleteCompletions: return 3;
		}
	}