import type { DatetimeProperty, DynamicProperty, LinkProperty, PlainProperty, ProgressProperty, Property, TagsProperty } from '../types'; export declare function isTagsProperty(value?: any, property?: Property | null): property is TagsProperty | null; export declare function isPlainProperty(_?: any, property?: Property | null): property is PlainProperty | null; export declare function isDatetimeProperty(value?: any, property?: Property | null): property is DatetimeProperty | null; export declare function isProgressProperty(value?: any, property?: Property | null): property is ProgressProperty | null; export declare function isLinkProperty(_?: any, property?: Property | null): property is LinkProperty | null; export declare function isDynamicWordsCountProperty(_?: any, property?: Property | null): property is DynamicProperty | null; export declare function isDynamicReadingTimeProperty(_?: any, property?: Property | null): property is DynamicProperty | null;