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 39.10 SRFI-11 - let-values
 ==========================
 
 This module implements the binding forms for multiple values
 `let-values' and `let-values*'.  These forms are similar to `let' and
 `let*' ( Local Bindings), but they support binding of the values
 returned by multiple-valued expressions.
 
    Write `(use-modules (srfi srfi-11))' to make the bindings available.
 
      (let-values (((x y) (values 1 2))
                   ((z f) (values 3 4)))
         (+ x y z f))
      =>
      10
 
    `let-values' performs all bindings simultaneously, which means that
 no expression in the binding clauses may refer to variables bound in the
 same clause list.  `let-values*', on the other hand, performs the
 bindings sequentially, just like `let*' does for single-valued
 expressions.
 
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