/**
 * logsumexp along axis 1 of a row-major (rows, cols) matrix.
 * Returns Float64Array of length `rows`.
 */
export declare function logSumExpRows(data: Float64Array, rows: number, cols: number): Float64Array;
/** Softmax along axis 1. Modifies `out` in place; pass `data` and `out` separately. */
export declare function softmaxRowsInto(data: Float64Array, out: Float64Array, rows: number, cols: number, scale?: number): void;
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