"description":"The `let` function accepts a list of `variable name` and `expression` pairs,\nevaluating each expression and _binding_ it to the corresponding variable name.\n`let` bindings are sequential: when a `let` binding is evaluated, it may refer to prior binding.\nThe _context_ created by this set of bindings is used for evaluating its body expressions.\n The let expression returns the value of the last such body expression.\nNote: intermediary statements returning a response type must be checked",