import type { DataXY } from 'cheminfo-types';
export interface InternalDirectOptimizationOptions {
    minValues: ArrayLike<number>;
    maxValues: ArrayLike<number>;
    maxIterations?: number;
    epsilon?: number;
    tolerance?: number;
    tolerance2?: number;
    initialState?: object;
}
export declare function directOptimization(data: DataXY, sumOfShapes: (parameters: number[]) => (x: number) => number, options: InternalDirectOptimizationOptions): {
    parameterError: number;
    iterations: number;
    parameterValues: number[];
};
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