"a" "b"

# (map (@ 1 0-0)
#   (.sequence
#     (string (@ 1 0-3) ‘"a"’)
#     (string (@ 1 4-7) ‘"b"’)
#   )
#   (.result nil)
# )
# :1:4–7: error: more the one value in value statement
#  "a" "b"
#      ^^^