What is the defaut compspec

[Aman Verma]

Hi, I was just wondering what would be a good way of emulating the
default compspec in Bash with an explicit `complete` command. I have
tried

    complete -o bashdefault {command}

but this isn't identical to removing the compspec and relying on
Bash's default.

    complete -f -o bashdefault {command}

seems to work but I wanted to ask if anyone more familiar with
the source might know better. I don't think this is answered in the manual.

Aman