anchor.diff:            appending (list key value))
        into job-queue
        finally
  -       (return (thread-pool-start 
  +       (return (thread-pool-start
                   :try-models
                   (min thread-count (length ids))
                   :job-queue
  
positive.code:               :neuron-count (elt (topology net) layer-index)
                :transfer-tag (transfer-tag net)
                :net net)))
    (connect net))
  
  (defgeneric set-inputs (object inputs)
  
negative.code:                  :initform (error ":neuron-count required") :type integer)
     (transfer-tag :accessor transfer-tag :initarg :transfer-tag
                   :initform nil)
     (next-layer :accessor next-layer :initarg :next-layer
                 :type 't-layer :initform nil)
     (net :reader net :initarg :net :initform (error ":net required")
          :type t-net))
    (:documentation "Describes a neural network layer."))
  
  (defmethod initialize-instance :after ((layer t-layer) &key)
  