code: def merge_dicts(x, y):
      z = x.copy()
      z.update(y)
      return z
  
imports: import json
  import pandas
  import pyarrow
  from parameterized import parameterized
  import streamlit
  from streamlit.errors import StreamlitAPIException
  from streamlit.type_util import bytes_to_data_frame, pyarrow_table_to_bytes
  from tests.delta_generator_test_case import DeltaGeneratorTestCase
label_desc: Use image node_id 1 for calling a global function with example usage: merge_dicts(x, y) and returns: z