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make-condition  type &rest slot-initializations ⇒  condition
type—a type specifier (for a subtype of condition).
slot-initializations—an initialization argument list.
condition—a condition.
Constructs and returns a condition of type type using slot-initializations for the initial values of the slots. The newly created condition is returned.
 (defvar *oops-count* 0)
 (setq a (make-condition 'simple-error
                         :format-control "This is your ~:R error."
                         :format-arguments (list (incf *oops-count*))))
⇒  #<SIMPLE-ERROR 32245104>
 (format t "~&~A~
 |>  This is your first error.
⇒  NIL
 (error a)
 |>  Error: This is your first error.
 |>  To continue, type :CONTINUE followed by an option number:
 |>   1: Return to Lisp Toplevel.
 |>  Debug> 
The set of defined condition types.