1.  To switch tf.keras to use Keras 2 (tf-keras), set the environment
        variable TF_USE_LEGACY_KERAS=1 directly or in your python program by
        import os;os.environ["TF_USE_LEGACY_KERAS"]=1. Please note that this
        will set it for all packages in your Python runtime program

*   1.  Change import of keras from tensorflow as follows
*   import tensorflow.keras as keras and import keras to import tf_keras as
    keras

durchgeführt.
Workshop Nr. 3:
Neben einer kleinen Einführung in die Geschichte und Chemie der Naturkosmetik steht Selbermachen auf dem Programm.
Im Grundkurs erlernen Sie die Herstellung von einfachen Hautcremes. In Kleingruppen erarbeiten Sie selbständig ein
Grundrezept; diese Basiscreme darf dann jeder Teilnehmer individuell vollenden und, mit einem selbstgestalteten Etikett

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