I have defined the following Bash function:

%a%() { echo hello; }

I can confirm the function is really defined:

$ declare -f %a%
%a% () 
{ 
    echo hello
}

How do I call it? Because when I do, then:

$ %a%
-bash: fg: %a%: no such job
$ set +m
$ %a%
-bash: fg: no job control