Optional datetime parsing with brackets

[AndreVelde]

In our projects we are using Java/ Kotlin and Typescript. Saw that with this library you cant use bracks in the string format to parse for example a value with milliseconds and one without to the Date object. In Java/ Kotlin you would then for example have yyyy-MM-dd'T'HH:mm:ss[.SSS]X.

Was wondering if this was at some point considered and if not if it would be a good addition for this library.