code: def float32(x):
      if dtype(x=x) != "float" or get_dtype(type="float") != tf.float32:
          x = tf.cast(x=x, dtype=tf.float32)
      return x
  
file_path: tensorforce/tensorforce/core/utils/tf_util.py
imports: import tensorflow
  from tensorforce import TensorforceError
label_desc: Use image node_id 7 for calling a global function with example usage: float32(x) and returns: x