export interface HashContentOptions {
    /**
     * Truncate the hex digest to this many leading characters. Omit for the full
     * 64-char SHA-256 hex string. Must be a positive integer when provided.
     */
    length?: number;
}
/**
 * Compute a SHA-256 hex digest of `content` (a string or raw bytes). Returns the
 * full 64-char hex digest by default, or the leading `length` characters when
 * `length` is given.
 *
 * Strings are hashed as UTF-8 (matching the prior call-site convention).
 */
export declare function hashContent(content: string | Uint8Array, options?: HashContentOptions): string;
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