[Typescript] `FuseOptionKeyObject` type doesn't match the implementation

[BenJenkinson]

The FuseOptionKeyObject type definition doesn't match the implementation.

Fuse/src/index.d.ts

Lines 234 to 239 in 6afcfaf

	export type FuseOptionKeyObject = {
	name: string | string[]
	weight: number
	}
	export type FuseOptionKey = FuseOptionKeyObject | string | string[]

• The weight property may be optional. (Since if not specified, Fuse will default it to 1)

Fuse/src/tools/KeyStore.js

Lines 59 to 65 in 6afcfaf

	if (hasOwn.call(key, 'weight')) {
	weight = key.weight
	if (weight <= 0) {
	throw new Error(ErrorMsg.INVALID_KEY_WEIGHT_VALUE(name))
	}
	}

• The getFn property is missing.

Fuse/docs/examples.md

Lines 170 to 180 in 6afcfaf

	const options = {
	includeScore: true,
	keys: [
	{ name: 'title', getFn: (book) => book.title },
	{ name: 'authorName', getFn: (book) => book.author.name }
	]
	})
	const fuse = new Fuse(list, options)
	const result = fuse.search({ authorName: 'Steve' })

Version

6.6.0

Is this a regression?

No

🔬Minimal Reproduction (in Typescript)

• The weight property cannot be omitted without an error.
• The getFn example from the docs cannot be written without an error.

[krisk]

Does look like a regression specifically for the getFn part. Will address.