Parsing arguments hierarchically based on groups

[tomchor]

Is there a way to parse arguments in a way that the group that they belong to is preserved? For example, considering the MWE below:

using ArgParse

settings = ArgParseSettings()

# Create argument groups using add_arg_group! function
add_arg_group!(settings, "Input Options", :input_group)
@add_arg_table! settings begin
    "--input"
        arg_type = String
    "--format"
        default = "csv"
end

add_arg_group!(settings, "Output Options", :output_group)
@add_arg_table! settings begin
    "--output"
        arg_type = String
    "--verbose"
        action = :store_true
end

args = parse_args(settings)

I'd like args to return a hierarchical Dict, such as

julia> Dict(:input_group => Dict("input" => nothing, "format" => "csv"), :output_group => Dict("output" => nothing, "verbose" => false))
Dict{Symbol, Dict{String}} with 2 entries:
  :input_group  => Dict{String, Union{Nothing, String}}("format"=>"csv", "input"=>nothing)
  :output_group => Dict{String, Union{Nothing, Bool}}("output"=>nothing, "verbose"=>false)

In this possible?