import type { ComputeAxisEntry, ComputeComputeAxisOptions, InferenceBillingRecord } from './types.js';
/** Compute the C-axis weight vector for a list of inference billing
 *  records. Empty input → empty output (Invariant I-B3). All-zero
 *  input (zero prompt + zero completion tokens across all providers)
 *  throws. */
export declare function computeComputeAxisWeights(providers: InferenceBillingRecord[], options?: ComputeComputeAxisOptions): ComputeAxisEntry[];
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