export declare const hasOwn: (v: PropertyKey) => boolean;
export declare const ELEMENT_OPERATORS: {
    $lt: {
        compileElementSelector(operand: any): (value: any) => any;
    };
    $gt: {
        compileElementSelector(operand: any): (value: any) => any;
    };
    $lte: {
        compileElementSelector(operand: any): (value: any) => any;
    };
    $gte: {
        compileElementSelector(operand: any): (value: any) => any;
    };
    $mod: {
        compileElementSelector(operand: any): (value: any) => boolean;
    };
    $in: {
        compileElementSelector(operand: any): (value: any) => boolean;
    };
    $size: {
        dontExpandLeafArrays: boolean;
        compileElementSelector(operand: any): (value: any) => boolean;
    };
    $type: {
        dontIncludeLeafArrays: boolean;
        compileElementSelector(operand: any): (value: any) => boolean;
    };
    $bitsAllSet: {
        compileElementSelector(operand: any): (value: any) => boolean;
    };
    $bitsAnySet: {
        compileElementSelector(operand: any): (value: any) => boolean;
    };
    $bitsAllClear: {
        compileElementSelector(operand: any): (value: any) => boolean;
    };
    $bitsAnyClear: {
        compileElementSelector(operand: any): (value: any) => boolean;
    };
    $regex: {
        compileElementSelector(operand: any, valueSelector: any): (value: any) => any;
    };
    $elemMatch: {
        dontExpandLeafArrays: boolean;
        compileElementSelector(operand: any, valueSelector: any, matcher: any): (value: any) => number | false;
    };
};
export declare function compileDocumentSelector(docSelector: any, matcher: any, options?: {
    isRoot?: boolean;
    inElemMatch?: boolean;
}): any;
export declare function equalityElementMatcher(elementSelector: any): (value: any) => any;
export declare function expandArraysInBranches(branches: any, skipTheArrays?: boolean): any[];
export declare function isIndexable(obj: any): boolean;
export declare function isNumericKey(s: any): boolean;
export declare function isOperatorObject(valueSelector: any, inconsistentOK?: any): boolean;
export declare function makeLookupFunction(key: any, options?: {
    forSort?: boolean;
}): (doc: any, arrayIndices?: any[]) => any[];
export declare function nothingMatcher(docOrBranchedValues: any): {
    result: boolean;
};
export declare function pathsToTree(paths: any, newLeafFn: any, conflictFn: any, root?: {}): {};
export declare function populateDocumentWithQueryFields(query: any, document?: {}): {};
export declare function projectionDetails(fields: any): {
    including: any;
    tree: {};
};
export declare function regexpElementMatcher(regexp: any): (value: any) => any;
export declare const _f: {
    _type(v: any): 1 | 2 | 3 | 4 | 8 | 5 | 10 | 7 | 11 | 9 | 13;
    _equal(a: any, b: any): any;
    _typeorder(t: any): number;
    _cmp(a: any, b: any): any;
};
export declare function _checkSupportedProjection(fields: any): void;
export declare function _modify(doc: any, modifier: any, options?: {
    isInsert?: boolean;
    arrayIndices?: number[];
}): void;
export declare function combineImportantPathsIntoProjection(paths: any, projection: any): {};
export declare function _pathsElidingNumericKeys(paths: any): any;
export declare function _compileProjection(fields: any): (doc: any) => any;