FISWeight Enum isn't being parsed correctly

[fny]

Here's the error:

Problem with the value of property "EstimatedShippingWeight": One of the following problems occured: (0) Problem with the value of property "Unit": Expected an enum member, but received a string with value "POUNDS"

Here is the culprit:

amazon-mws-api-sdk/src/sections/fulfillment-outbound-shipment/type.ts

Lines 52 to 55 in cf612e1

	export enum FISWeightUnitEnum {
	'kilograms',
	'pounds',
	}

Not sure how to get enums working properly, but making FISWeight a string cleared up the issue. I tried to uppercase pounds in the enum but nothing changed.

[moltar]

Looks like just a capitalization issue?