in libraries/azure-app-configuration-importer-file-source/src/fileConfigurationSettingsSource.ts [15:30]
constructor(fileOptions: FileSourceOptions) {
super({
data: "",
...fileOptions as SourceOptions
});
if (!fileOptions) {
throw new ArgumentNullError("fileOptions argument is required.");
}
if (!fileOptions.filePath || fileOptions.filePath.trim().length <= 0) {
throw new ArgumentNullError("fileOptions.filePath cannot be null or empty.");
}
this.filePath = fileOptions.filePath;
}