/**
 * Converts a matrix from Coordinate (COO) format to Compressed Sparse Row (CSR) format.
 * @param {Object} cooMatrix - The matrix in COO format with properties: values, columns, rows.
 * @param {number} nbRows - The number of rows in the matrix.
 * @returns {{rows: Float64Array, columns: Float64Array, values: Float64Array}} The matrix in CSR format.
 */
export function cooToCsr(cooMatrix: any, nbRows: number): {
    rows: Float64Array;
    columns: Float64Array;
    values: Float64Array;
};
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