Default value for AbstractGauge in MpsContractor

[annamariadziubyna]

We are using the MpsContractor structure, which is currently defined as follows: MpsContractor{T<:AbstractStrategy,R<:AbstractGauge,S<:Real}
I would like to know if it's possible to modify this structure so that when R is not provided, it defaults to a predefined value, such as NoUpdate. Specifically, the desired behavior is for MpsContractor to behave like MpsContractor{T<:AbstractStrategy,S<:Real} where R is automatically set to NoUpdate.

[lpawela]

You can define a new constructor, something like MpsContractor(T, S, args...) where {T, S} = MpsContractor{T, NoUpdate, S}(args...).

[annamariadziubyna]

Thank you for your suggestion! I’ve tried implementing the proposed solution, but I’m having trouble correctly integrating this change into the code. I would greatly appreciate it if you could make this modification directly in the code.

[lpawela]

Have a look at #32