I need help with my run keeper

Hi All,

With Bruce's help, I have been updating my keeper
on "run"


I am missing what run does with
(not finding them in https://docs.raku.org/routine/run)

    :$cwd
    :$env
    :$arg0   and
    :$win-verbatim-args


This is what I have so far:

method new(Proc:U:
         :$in = '-',
         :$out = '-',
         :$err = '-',
         Bool :$bin = False,
         Bool :$chomp = True,
         Bool :$merge = False,
         Str:D :$enc = 'UTF-8',
         Str:D :$nl = "\n",
     --> Proc:D)

sub run(
     *@args ($, *@),
     :$in = '-',            # use `:$in`, `$:out`, and `:$err` arguments 
to redirect to
                            # different file handle, thus creating a 
kind of pipe
     :$out = '-',           # syntax to change these values is
                            #     :out($alt-handle) 

     :$err = '-',
     Bool :$bin = False,    # $bin controls whether the streams are 
handled as
                            # binary (i.e. Blob object) or text (i.e. 
Str objects).
                            # If $bin is False, $enc holds the character 
encoding
                            # to encode strings sent to the input stream 
and decode
                            # binary data from the output and error streams.
     Bool :$chomp = True,   # With $chomp set to True, newlines are 
stripped from
                            # the output and err streams when reading 
with lines or get.
     Bool :$merge = False,  # If $merge is set to True, the standard 
output and error
                            # stream end up merged in $proc.out.
     Str:D :$enc = 'UTF-8', # the type of text: UTF-8, UTF-16, etc.
     Str:D :$nl = "\n",     # $nl controls what your idea of a newline is
     :$cwd = $*CWD,
     Hash() :$env = %*ENV,
     :$arg0,
     :$win-verbatim-args = False
--> Proc:D)