@shipengine/connect-carrier-api/lib/models/labels/label-layouts.d.ts

This is the typescript/javascript definitions for carrier api

/** @description Label sizes */
export declare enum LabelLayouts {
    /** @description 4x6 inches */
    FourBySix = "4x6",
    /** @description 8.5x11 inches */
    Letter = "letter",
    /** @description A4 layout */
    A4 = "A4",
    /** @description A6 layout */
    A6 = "A6"
}