import { ModelDef, OrderBy, SelectAst, WhereAst } from './types';
export type QueryAst<TModel extends ModelDef<any>> = SelectAst<TModel>;
export declare function orderObjectToArray<T>(order?: OrderBy<T>): Array<{
    field: string;
    direction: 'asc' | 'desc';
}> | undefined;
export declare function and(...nodes: WhereAst[]): WhereAst;
export declare function or(...nodes: WhereAst[]): WhereAst;
export declare function not(node: WhereAst): WhereAst;
export declare function raw(sql: string): WhereAst;