let \1 : {{}}}
let \1 : {)}
let \1 : {>}

# (let (@ 1 0-3) ‘\1’
#   (.value
#     (array (@ 1 9-10)
#       (.elements
#         (string (@ 1 10-11) ‘{’)
#       )
#     )
#   )
# )
# (let (@ 2 0-3) ‘\1’
#   (.value
#     (array (@ 2 9-10)
#       (.elements nil)
#     )
#   )
# )
# (let (@ 3 0-3) ‘\1’
#   (.value
#     (array (@ 3 9-10)
#       (.elements nil)
#     )
#   )
# )
# :1:12–14: error: too many parameters
#  let \1 : {{}}}
#              ^^
# :2:10–11: error: x-stray ‘)’
#  let \1 : {)}
#            ^
# :3:10–11: error: x-stray ‘>’
#  let \1 : {>}
#            ^