Imaginary unit in Julia Symbolics

I would like to use Symbolics.jl to make some symbolic algebra on matrices.

I have got a problem to express this

using Symbolics
using Latexify
using LinearAlgebra

@variables ω

A = exp(-1im*ω)

This is the outcome (julia 1.6.7, Symbolics v4.13.0 )

ERROR: MethodError: no method matching decompose(::Num)
Closest candidates are:
decompose(::Integer) at float.jl:555
decompose(::Float16) at float.jl:557
decompose(::Float32) at float.jl:568

[1] isfinite(x::Num)
@ Base ./float.jl:453
[2] exp(z::Complex{Num})
@ Base ./complex.jl:642
[3] top-level scope
@ REPL[227]:1

There is a know issue: Complex missing Euler's formula · Issue #591 · JuliaSymbolics/Symbolics.jl · GitHub with some further references and hints.