export declare function assertDictionaryOfMaybeHasKeys(name: string, mixed: any, keys: T[]): (((null | undefined | ({ [key: string]: any; })) | null | undefined)[]) | never; export declare function assertDictionaryOfMaybeHasKeysHandler(keys: T[]): (name: string, mixed: any) => (((null | undefined | ({ [key: string]: any; })) | null | undefined)[]) | never; export declare function assertDictionaryOfMaybeNotHasKeys(name: string, mixed: any, keys: T[]): (((null | undefined | ({ [key: string]: any; })) | null | undefined)[]) | never; export declare function assertDictionaryOfMaybeNotHasKeysHandler(keys: T[]): (name: string, mixed: any) => (((null | undefined | ({ [key: string]: any; })) | null | undefined)[]) | never;