export function sanitizeDocxMediaName(value: any, fallback?: string): any;
export function getImageExtensionFromMimeType(mimeType: any): any;
export function getDataUriMetadata(src?: string): {
    extension: any;
    hasPayloadSeparator: boolean;
    payload: string;
    rawMimeType: string;
    mimeType: string;
    isBase64: boolean;
} | null;
export function tryDecodeDataUriText(payload: any): string | null;
export function getFallbackImageNameFromDataUri(src?: string, fallback?: string): string;
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