code: def merge_override(a, b):
      "merges b into a"
      for key in b:
          if key in a:
              if isinstance(a[key], dict) and isinstance(b[key], dict):
                  merge_override(a[key], b[key])
              elif isinstance(a[key], list) and isinstance(
                  b[key], list
              ):
                  a[key] += b[key]
              else:
                  a[key] = b[key]
          else:
              a[key] = b[key]
      return a
  
imports: import json
  import click
  from collections import namedtuple
  import re
  import yaml
label_desc: Use image node_id 3 for calling a global function with example usage: merge_override(a, b) and returns: a