import tensorflow as tf
import numpy as np
splits = [1, 4, 4, 7, 8, 8]
x = tf.RaggedTensor.from_row_splits(values=np.random.choice(20,10).tolist(), row_splits=splits)
y = tf.RaggedTensor.from_row_splits(values=np.random.choice(20,10).tolist(), row_splits=splits)
print((x+y).to_list())