class_docstr: Sum two signals.
class_docstr_tok: ["Sum","two","signals","."]
code: def get_signal(
      self, signal_one: tf.Tensor, signal_two: tf.Tensor
  ) -> tf.Tensor:
      return signal_one + signal_two
  
imports: from typing import Dict, Text
  from ddsp import core
  from ddsp import dags
  import gin
  import tensorflow
label_desc: Use image node_id 3 for calling the Add obj's underlying member method code with example usage: obj.get_signal(signal_one, signal_two) and returns: unknown