import { Descriptor, Output, Expression, DataType, OrderType } from '../../state/index.js';
interface FormatOptions {
    withComputedField?: boolean;
}
export declare function _getOutputs(descriptor: Descriptor): Array<Output>;
export declare function getOutputs(descriptor: Descriptor): Array<string>;
export declare function getUngroupedOutputs(descriptor: Descriptor): Array<string>;
export declare function getOutput(descriptor: Descriptor, outputId: string, options?: FormatOptions): Output;
export declare function getOutputFromAlias(descriptor: Descriptor, outputAlias: string, options?: FormatOptions): Output;
export declare function getOutputFieldFromAlias(descriptor: Descriptor, outputAlias: string, options?: FormatOptions): Expression;
export declare function getOutputIdFromAlias(descriptor: Descriptor, outputAlias: string): string;
export declare function getOutputField(descriptor: Descriptor, outputId: string, options?: FormatOptions): Expression;
export declare function getOutputAttributeFrom(descriptor: Descriptor, outputId: string): string;
export declare function getOutputExpressionString(descriptor: Descriptor, outputId: string): string;
export declare function getOutputAs(descriptor: Descriptor, outputId: string): string;
export declare function getOutputHasAggregate(descriptor: Descriptor, outputId: string): string | undefined;
export declare function getOutputDatatype(descriptor: Descriptor, outputId: string): DataType;
export declare function getOutputIndex(state: Descriptor, outputId: string): number;
export declare function _outputIdValidator(state: Descriptor, outputId: string): string;
export declare function _isOutputProductChild(state: Descriptor, outputId: string, productId: string): boolean;
export declare function getOutputOrderType(state: Descriptor, outputId: string): OrderType | undefined;
export {};