import type { PipeSegment } from '../../../model/malloy_types';
import type { SourceFieldSpace } from '../types/field-space';
import { ProjectFieldSpace } from '../field-space/project-field-space';
import type { QueryProperty } from '../types/query-property';
import { QuerySegmentBuilder } from './reduce-builder';
import type { QueryOperationSpace } from '../field-space/query-spaces';
import type { MalloyElement } from '../types/malloy-element';
import type { QueryBuilder } from '../types/query-builder';
import type { QueryInputSpace } from '../field-space/query-input-space';
export declare class ProjectBuilder extends QuerySegmentBuilder implements QueryBuilder {
    resultFS: ProjectFieldSpace;
    inputFS: QueryInputSpace;
    readonly type = "project";
    constructor(baseFS: SourceFieldSpace, refineThis: PipeSegment | undefined, isNestIn: QueryOperationSpace | undefined, astEl: MalloyElement);
    execute(qp: QueryProperty): void;
    finalize(fromSeg: PipeSegment | undefined): PipeSegment;
}