Type Alias LenientAttributeValue

LenientAttributeValue: AttributeValue | bigint | Date

A lenient variant of AttributeValue that - for convenience - allows more values.

Here's how the values are converted to proper attribute values:

`LenientAttributeValue`	Conversion to `AttributeType`
`bigint`	`value.toString()`
`Date`	`value.toISOString()`