Dependent parameters disappear from system parameters

[hersle]

using ModelingToolkit
using ModelingToolkit: t_nounits as t, D_nounits as D
@variables x(t)
@parameters A B
@named M = ODESystem([D(x) ~ A + B], t; parameter_dependencies = [B ~ 2A])
parameters(M) # gives only A, but I expected A and B

Is this intended? I would like B to remain accessible from parameters(M).

[hersle]

Removing dependent variables seem intentional. Is the intention to "remove" them from the system because they are effectively "always" set?

I expected parameters(sys) to return all (independent and dependent parameters). My model construction is conditional on something like if B in parameters(sys) (and I do not care if B is dependent or independent).

Could parameters(sys) also return dependent parameters? Or is there a better way to check if a system has a given (independent or dependent) parameter?

[hersle]

Sorry, I just realized there is full_parameters. I will open a PR to document it a little better to "fix" this issue.