import { PsychartOptions, DataOptions, RegionName, Datum } from './types';
/**
 * Produce a deep copy of an object.
 * @param obj Any object.
 * @returns A deep copy of `obj`.
 */
export declare function deepCopy<T>(obj: T): T;
/**
 * Take an object with all optional values, and set all unset values to their defaults.
 * @param optional An object with all parameters optional.
 * @param defaults An object with all parameters default.
 * @returns An object with all parameters that are unset as their default values.
 */
export declare function setDefaults<T extends {
    [key: string]: any;
}>(optional: Partial<T>, defaults: T): T;
/**
 * Represents a set of default options for Psychart.
 */
export declare const defaultPsychartOptions: PsychartOptions;
/**
 * Represents a set of default data options.
 */
export declare const defaultDataOptions: DataOptions;
/**
 * Predefined regions source: 2021 Equipment Thermal Guidelines for Data Processing Environments
 * ASHRAE-55 source: https://comfort.cbe.berkeley.edu/
 */
export declare const regions: {
    [K in RegionName]: {
        tooltip: string;
        data: Array<Datum>;
    };
};