"hello" | length
Error: nu::parser::input_type_mismatch

  × Command does not support string input.
   ╭─[entry #2:1:11]
 1 │ "hello" | length
   ·           ───┬──
   ·              ╰── command doesn't support string input
   ╰────

echo "hello" | length
# => 1

"hello" | length
Error: nu::parser::input_type_mismatch

  × Command does not support string input.
   ╭─[entry #22:1:11]
 1 │ "hello" | length
   ·           ───┬──
   ·              ╰── command doesn't support string input
   ╰────

echo "hello" | length
Error: nu::shell::only_supports_this_input_type

  × Input type not supported.
   ╭─[entry #23:1:6]
 1 │ echo "hello" | length
   ·      ───┬───   ───┬──
   ·         │         ╰── only list, table, binary, and nothing input data is supported
   ·         ╰── input type: string
   ╰────