/**
 * Zero-truncated poisson
 */
export default class ZeroTruncatedPoisson {
    _lr: number;
    /**
     * Fit model.
     * @param {number[]} x Training data
     */
    fit(x: number[]): void;
    _lambda: number;
    /**
     * Returns predicted probabilities.
     * @param {number[]} x Sample data
     * @returns {number[]} Predicted values
     */
    probability(x: number[]): number[];
}