/**
 * Throw if `name` is not a safe ExifTool tag reference.
 *
 * Because exiftool is launched with `-stay_open True -@ -` and commands are
 * delimited by newlines, any `\n`, `\r`, `\0`, whitespace, or shell/exiftool
 * metacharacter inside a tag name would let a caller inject arbitrary
 * arguments into the exiftool process (e.g. `-o ../exploit`, `-p /etc/passwd`).
 *
 * This validator is applied at every site where a caller-supplied tag name is
 * interpolated into an exiftool argument.
 */
export declare function validateTagName(name: string, context?: string): void;