import { Util, Collection } from "../";
/** Fundamental aggregation types. */
export declare type CountAggregationType = "count" | "count_values" | "unique" | "empty" | "not_empty";
export declare type PercentAggregationType = "percent_empty" | "percent_not_empty";
export declare type CheckboxSpecificAggregationType = "checked" | "unchecked" | "percent_checked" | "percent_unchecked";
export declare type DateSpecificAggregationType = "earliest_date" | "latest_date" | "date_range";
export declare type NumberSpecificAggregationType = "sum" | "average" | "median" | "min" | "max" | "range";
/** Abstracted structure aggregation types. */
export declare type GeneralAggregationType = CountAggregationType | PercentAggregationType;
export declare type TitleAggregationType = GeneralAggregationType;
export declare type TextAggregationType = GeneralAggregationType;
export declare type NumberAggregationType = GeneralAggregationType | NumberSpecificAggregationType;
export declare type SelectAggregationType = GeneralAggregationType;
export declare type MultiSelectAggregationType = GeneralAggregationType;
export declare type DateAggregationType = GeneralAggregationType | DateSpecificAggregationType;
export declare type PersonAggregationType = GeneralAggregationType;
export declare type FileAggregationType = GeneralAggregationType;
export declare type CheckboxAggregationType = "count" | CheckboxSpecificAggregationType;
export declare type URLAggregationType = GeneralAggregationType;
export declare type EmailAggregationType = GeneralAggregationType;
export declare type PhoneAggregationType = GeneralAggregationType;
export declare type CreatedEditedTimeAggregationType = DateAggregationType;
export declare type CreatedEditedByAggregationType = GeneralAggregationType;
/** AggregationType union. */
export declare type AggregationType = TitleAggregationType | TextAggregationType | NumberAggregationType | SelectAggregationType | MultiSelectAggregationType | DateAggregationType | PersonAggregationType | FileAggregationType | CheckboxAggregationType | URLAggregationType | EmailAggregationType | PhoneAggregationType | CreatedEditedTimeAggregationType | CreatedEditedByAggregationType;
export interface Aggregate {
    property: Collection.ColumnID;
    type: Collection.ColumnPropertyType;
    aggregation_type: AggregationType;
    /**
     * When `aggregation_type` is "count", `id` is "count".
     *
     * Otherwise, `id` is an Util.UUID string.
     */
    id: "count" | Util.UUID;
    /** Aggregate is useless on other types of views. */
    view_type: "table" | "board";
}
/**
 * @remarks
 * Experimental. Do not use.
 */
export interface Aggregate2 {
    property: Collection.ColumnID;
    aggregator: AggregationType;
}
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