code: def floatx():
      """Return the default float type, as a string.
  
      E.g. `'float16'`, `'float32'`, `'float64'`.
  
      Returns:
          String, the current default float type.
  
      Example:
  
      >>> keras.config.floatx()
      'float32'
  
      """
      return _FLOATX
  
file_path: keras/keras/backend/config.py
imports: import json
  import os
  from keras.api_export import keras_export
label_desc: Use image node_id 1 for calling a global function with example usage: floatx() and returns: _FLOATX