Interface CompletionMiddleware

interface CompletionMiddleware {
    provideCompletionItem?: (
        this: void,
        document: TextDocument,
        position: Position,
        context: CompletionContext,
        token: CancellationToken,
        next: ProvideCompletionItemsSignature,
    ) => ProviderResult<CompletionList | CompletionItem[]>;
    resolveCompletionItem?: (
        this: void,
        item: CompletionItem,
        token: CancellationToken,
        next: ResolveCompletionItemSignature,
    ) => ProviderResult<CompletionItem>;
}