import { MathJsConfig } from '../config.js';
export declare const MATRIX_OPTIONS: readonly ['Matrix', 'Array'];
export declare const NUMBER_OPTIONS: readonly ['number', 'BigNumber', 'bigint', 'Fraction'];
/** A valid value of the `matrix` configuration option. */
export type MatrixOption = (typeof MATRIX_OPTIONS)[number];
/** A valid value of the `number` configuration option. */
export type NumberOption = (typeof NUMBER_OPTIONS)[number];
/**
 * Type for partial config options
 */
export type ConfigOptions = Partial<MathJsConfig> & {
    epsilon?: number;
};
/**
 * Type for the config function
 */
export interface ConfigFunction {
    (): MathJsConfig;
    (options: ConfigOptions): MathJsConfig;
    MATRIX_OPTIONS: readonly string[];
    NUMBER_OPTIONS: readonly string[];
    readonly relTol: number;
    readonly absTol: number;
    readonly matrix: MatrixOption;
    readonly number: NumberOption;
    readonly numberFallback: 'number' | 'BigNumber';
    readonly precision: number;
    readonly predictable: boolean;
    readonly randomSeed: string | null;
    readonly legacySubset: boolean;
}
/**
 * Type for the emit function
 */
export type EmitFunction = (event: string, curr: MathJsConfig, prev: MathJsConfig, changes: Partial<MathJsConfig>) => void;
/**
 * Create the `config` function for a math.js instance.
 *
 * The created function reads and changes `config`, and calls `emit` with the event
 * `'config'`.
 */
export declare function configFactory(config: MathJsConfig, emit: EmitFunction): ConfigFunction;
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