8.0.0-beta.6

Changes

• Added Argument.tagged and Argument.taggedWithInput.
• Added Argument.taggedUnion.
• Added Argument.composeWithFailure, splits off the last option of Argument.compose.
• Changed otherwise and modifyOtherwise to allow an empty string, which will do nothing, like propmts.
• Changed Argument.compose (and therefore Argument.composeWithFailure) to work with variable arguments.
• Changed Argument.range to work on things with a length or size property.
• Changed the name of Argument.tuple to Argument.product.
• Changed typings and documentation to specify more about objects.

Fixes

• Fixed typings for argumentDefaults.
• Fixed otherwise being used when an argument doesn't have it specified.