code: def _decode_byte_str(b_str):
      return tf.dtypes.cast(
          tf.strings.unicode_decode(b_str, "ASCII"), dtype=tf.float32
      )
  
file_path: io/tensorflow_io/python/ops/genome_ops.py
imports: import tensorflow
  from tensorflow_io.python.ops import core_ops
label_desc: Use image node_id 4 for calling a global function with example usage: _decode_byte_str(b_str) and returns: tf