Question about EMDSetting

using EmpiricalModeDecomposition

This is my code,I don’t know how the keyword S should be defined, this is the code in the Pkg description:

hht(signal::Vector{Float64}, s::EEMDSetting)

And this is Pkg’s website:
It doesn’t say what should s be.How do I define s?thanks!

If a function is not described in the docs it’s often helpful to read the tests of a package. In this case it seems the tests don’t include hht, but other functions that take an EEMDSetting as their second input: