import { type Ref } from "vue";
export declare function isRecord(value: unknown): value is Record<string, unknown>;
/** Read a dropped image File as a base64 data URL, the form the upload
 *  dispatches expect. Shared by the beat and character drop handlers.
 *  `readAsDataURL` always yields a string on load; the non-string reject
 *  is an unreachable guard kept so the resolve type stays `string` without
 *  a cast. */
export declare function readFileAsDataUrl(file: File): Promise<string>;
export interface UseClipboardCopyHandle {
    copied: Ref<boolean>;
    copy: (text: string) => Promise<void>;
}
/** Clipboard failures (permissions, insecure context) are swallowed on
 *  purpose: the UI just leaves the "Copied!" hint off, which is what
 *  `copied=false` already signals. */
export declare function useClipboardCopy(resetMs?: number): UseClipboardCopyHandle;
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