Is your feature request related to a problem? Please describe.
I want to create an alias which will basically add a prefix to a command.

Use case: I use aws-vault to run commands with the correct AWS credentials:

aws-vault exec <my-profile> -- <some command>

I tried to create an alias like this:

alias kaws [cmd] { aws-vault exec <my-profile> -- $cmd }

But this will only capture one 'word'. For example, this fails:

kaws aws s3 ls
error: kaws unexpected s3
- shell:1:14
1 | kaws aws s3 ls
  |          ^^ unexpected argument (try kaws -h)

Describe the solution you'd like
I'd need a way to describe a parameter which captures multiple inputs.

Maybe something like:

alias kaws [...cmd] { aws-vault exec <my-profile> -- $cmd }

Describe alternatives you've considered
@jonathandturner proposed creating an alias with many arguements, with the idea that arguments that are not specified are left blank. But this doesn't work.

alias kaws [arg1 arg2 arg3 arg4 arg5] { .... }

kaws aws s3 ls
error: Alias failed to run
- shell:1:14
1 | kaws aws s3 ls
  | ^^^^ alias failed to run
- shell:1:14
1 | kaws aws s3 ls
  | ---- Type Error
(expected:
string,
actual:
nothing)

Additional context