import { PreferredVisualisationType } from '../../types/data';
import { DataFrame, FieldType } from '../../types/dataFrame';
import { DataFrameType } from '../../types/dataFrameTypes';
export interface PanelDataSummary {
    hasData?: boolean;
    rowCountTotal: number;
    /** max number of rows in any given dataframe in the panel data */
    rowCountMax: number;
    frameCount: number;
    fieldCount: number;
    /** max number of fields in any given dataframe in the panel data */
    fieldCountMax: number;
    /** given a field type, return the number of fields across all dataframes which match this type */
    fieldCountByType: (type: FieldType) => number;
    /** returns true if any fields in any frames match the field type */
    hasFieldType: (type: FieldType) => boolean;
    hasDataFrameType: (type: DataFrameType) => boolean;
    hasPreferredVisualisationType: (type: PreferredVisualisationType) => boolean;
    /** true if time fields exist on the dataframe and the dataframe only contains a single time value */
    isInstant?: boolean;
    /** pass along a reference to the DataFrame array in case it's needed by the plugin */
    rawFrames?: DataFrame[];
    /** @deprecated use PanelDataSummary.fieldCountByType(FieldType.number) */
    numberFieldCount: number;
    /** @deprecated use PanelDataSummary.fieldCountByType(FieldType.time) */
    timeFieldCount: number;
    /** @deprecated use PanelDataSummary.fieldCountByType(FieldType.string) */
    stringFieldCount: number;
    /** @deprecated use PanelDataSummary.hasFieldType(FieldType.number) */
    hasTimeField?: boolean;
    /** @deprecated use PanelDataSummary.hasFieldType(FieldType.time) */
    hasNumberField?: boolean;
    /** @deprecated use PanelDataSummary.hasFieldType(FieldType.string) */
    hasStringField?: boolean;
}
/**
 * @alpha
 * given a list of dataframes, summarize attributes of those frames for features like suggestions.
 * @param frames - dataframes to summarize
 * @returns summary of the dataframes
 */
export declare function getPanelDataSummary(frames?: DataFrame[]): PanelDataSummary;