/**
 * Reads a single numeric sample from `view` using the PDS4 `data_type` string.
 *
 * Supported types: `UnsignedByte`, `SignedByte`, `UnsignedMSB2`, `UnsignedLSB2`,
 * `SignedMSB2`, `SignedLSB2`, `IEEE754MSBSingle`, `IEEE754LSBSingle`.
 *
 * @param view - DataView wrapping the image data buffer.
 * @param offset - Byte offset of the sample within `view`.
 * @param type - PDS4 `data_type` string from the XML label.
 * @returns Raw (unscaled) sample value.
 * @throws If `type` is not one of the supported values.
 */
export declare function readValue(view: DataView, offset: number, type: string): number;