return tuple(filled)
+def deep_get(target_dict, key_list):
+ """
+ Get a value from target_dict entering in the nested keys. If keys does not exist, it returns None
+ Example target_dict={a: {b: 5}}; key_list=[a,b] returns 5; both key_list=[a,b,c] and key_list=[f,h] return None
+ :param target_dict: dictionary to be read
+ :param key_list: list of keys to read from target_dict
+ :return: The wanted value if exist, None otherwise
+ """
+ for key in key_list:
+ if not isinstance(target_dict, dict) or key not in target_dict:
+ return None
+ target_dict = target_dict[key]
+ return target_dict
+
+
# LcmBase must be listed before TaskRegistry, as it is a dependency.
class LcmBase: