HandlingUnit
data class HandlingUnit(val id: String = "", val weight: String = "", val type: String? = null, val height: String? = null, val length: String? = null, val width: String? = null, val freightClass: String? = null, val description: String? = null, val quantity: Int? = 1, val imageUrl: String? = null)
Represents a handling unit (pallet/package) with dimensions