code: def epsilon():
      """Returns the value of the fuzz factor used in numeric expressions.
  
      Returns:
          A float.
  
      Example:
      >>> tf.keras.backend.epsilon()
      1e-07
      """
      return _EPSILON
  
imports: from tensorflow.python.util import dispatch
label_desc: Use image node_id 1 for calling a global function with example usage: epsilon() and returns: _EPSILON