How to interact with a Julia process inside a Julia process

General Usage
2

Would it have to be a separate julia process? (more so than explicitly adding a worker process)

julia> using Distributed

julia> @time using DataFrames
  1.043179 seconds (1.73 M allocations: 118.945 MiB, 2.35% gc time, 0.50% compilation time)

julia> w = addprocs(1)
1-element Vector{Int64}:
 2

julia> @time @everywhere 2 begin; @time using DataFrames; end
      From worker 2:	  0.933681 seconds (1.52 M allocations: 106.554 MiB, 6.33% gc time, 0.51% compilation time)
  1.405225 seconds (91 allocations: 4.406 KiB)

returning results would be as easy as

timing_result = remotecall_fetch(2) do # arg is the worker id
    return remote_global_variables
end