Missing Documentation for the Function `filtfilt(b::AbstractVector, a::AbstractVector, x::AbstractArray)`

[RoyiAvital]

The documentation only expose filtfilt(b::AbstractVector, x::AbstractArray).
Yet filtfilt(b::AbstractVector, a::AbstractVector, x::AbstractArray) is available but not documented.

Could it be documented?

OK, Tried using it and it generates errors:

ERROR: MethodError: no method matching filt_stepstate(::Vector{Float64}, ::Vector{Int64})

[wheeheee]

Huh. Yeah, it errors if a and b have different eltypes...probably not supposed to do that. And it also throws bounds errors on other inputs...
Well the workaround for now is to convert them to the same eltype, until a fix is merged.