/**
 * Development-only warnings, deduplicated per page load.
 *
 * The SDK's failure doctrine is silence: every failure path serves the
 * developer's own copy and never throws. That is correct for a visitor and a
 * trap for a developer — several misconfigurations (an over-cap fallback, a
 * refused mint, a key the server will reject) are indistinguishable from a
 * cold cache from the outside, so a developer can ship one and wait forever
 * for copy that is not coming. Dev builds say so once; production stays
 * silent, always.
 */
export declare function inDevelopment(): boolean;
export declare function warnDev(key: string, message: string): void;
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