code: def floatx():
      """Returns the default float type, as a string.
  
      E.g. `'float16'`, `'float32'`, `'float64'`.
  
      Returns:
          String, the current default float type.
  
      Example:
      >>> tf.keras.backend.floatx()
      'float32'
      """
      return _FLOATX
  
imports: from tensorflow.python.util import dispatch
label_desc: Use image node_id 3 for calling a global function with example usage: floatx() and returns: _FLOATX