import type { Expr, FilterCondition, PipeSegment, TurtleDef, TypeDesc } from '../../../model/malloy_types';
import type { FieldReference } from '../query-items/field-references';
import type { ExprValue } from '../types/expr-value';
import { ExpressionDef } from '../types/expression-def';
import { type FieldSpace } from '../types/field-space';
import type { Literal } from '../types/literal';
import type { QueryPropertyInterface } from '../types/query-property-interface';
import { LegalRefinementStage } from '../types/query-property-interface';
import type { FilterElement } from './filters';
import { Filter } from './filters';
export declare class DrillField extends ExpressionDef {
    readonly expr: Expr;
    readonly typeDesc: TypeDesc;
    elementType: string;
    constructor(expr: Expr, typeDesc: TypeDesc);
    getExpression(_fs: FieldSpace): ExprValue;
}
export declare class Drill extends Filter implements QueryPropertyInterface {
    elementType: string;
    forceQueryClass: undefined;
    queryRefinementStage: LegalRefinementStage;
    protected checkedDrillCondition(fs: FieldSpace, filter: FilterElement, reference: FieldReference, value: Literal): FilterCondition | undefined;
    protected checkedFilterCondition(fs: FieldSpace, filter: FilterElement): FilterCondition | undefined;
}
export declare function updateNestedDrillPaths(nest: TurtleDef, name: string): TurtleDef;
export declare function attachDrillPaths(pipeline: PipeSegment[], nestName: string): PipeSegment[];