未提供代表的论点

Question

我正在从事Angular项目。

我尝试将委托传递给函数。我有这个：

 saveDocumentForDiploma(documents: DocumentModel[], successDelegate: () => void, resources: any, resourceKeys: any) {
        return this.multiFileUploadService.syncFilesWithBackend(`${this.apiDiploma}/documents`, documents, resources.bijlageToevoegenSpinnerTekst,
            resources.bijlageVerwijderenSpinnerTekst).pipe(map((docSaveResult) => {
                const errors = docSaveResult.filter(item => item.error !== undefined);
                this.getDiplomaDocumentList().subscribe(() => {
                    if (errors.length > 0) {
                        const errorMessage = this.multiFileUploadService.makeWarningMessageForUnsyncedFiles(errors, resources,
                            resourceKeys.synchroniserenBestandenMisluktWaarschuwingTekst,
                            resourceKeys.bijlageMetTitelMisluktWarningTekst,
                            resourceKeys.verwijderdActieTekst,
                            resourceKeys.toegevoegdActieTekst);
                        this.feedbackStoreService.addErrorMessage({
                            feedbackPortalKey: FeedbackPortalsModel.mainFeedback,
                            message: {
                                key: 'documentSyncFoutTekst',
                                value: errorMessage,
                            },
                        });
                    } else {
                        successDelegate();
                    }
                });
            }));
    }

然后我尝试调用这种方法：

diplomaDataSubmitted() {
        if (this.allowSubmitAgain && this.formModel && this.formModel.form.valid) {
            this.formService.formStoreService.hideValidationSummary(this.formName);
            const obs = this.diplomaService.saveDiplomaMetaData(false, 'TODO').pipe(map(() => {
                const documents: DocumentModel[] = this.formModel.getAngularFormControl(DiplomaFormKeysModel.keys.diplomasUpload).value.files;
                this.diplomaService.saveDocumentForDiploma(documents,  successDelegate: () => void, resources, resourceKeys).subscribe(() => {

                });
            }));
            this.submitAllowed(obs);
        } else {
            this.formService.formStoreService.showValidationSummary(this.formName);

        }
    }

但是我在这条线上出现错误：

 this.diplomaService.saveDocumentForDiploma(documents,  successDelegate: () => void, resources, resourceKeys).subscribe(() => {

                });

那该如何解决呢？

谢谢