import type { DoubleMatrix } from 'cheminfo-types';
/**
 * Set in-place a subMatrix to matrix, the function check if the subMatrix
 * lies into the dimensions of matrix.
 * @param matrix - matrix that will receive the new element values.
 * @param subMatrix - matrix with equal or less size than matrix.
 * @param startRow - row index in matrix for the first row in subMatrix.
 * @param startColumn - column index in matrix for the first column in subMatrix.
 * @returns The modified `matrix`.
 */
export declare function matrixSetSubMatrix(matrix: DoubleMatrix, subMatrix: DoubleMatrix, startRow: number, startColumn: number): DoubleMatrix;
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