In Str§

See primary documentation in context for method indent

multi method indent(Int $steps where { $_ == 0 } )
multi method indent(Int $steps where { $_ > 0  } )
multi method indent($steps where { .isa(Whatever|| .isa(Int&& $_ < 0 } )

Indents each line of the string by $steps. If $steps is negative, it outdents instead. If $steps is *, then the string is outdented to the margin:

"  indented by 2 spaces\n    indented even more".indent(*)
    eq "indented by 2 spaces\n  indented even more"