code: def __init__(self, namespace):
      msg = "Object not in namespace '%s'" % namespace
      super(MetaflowNamespaceMismatch, self).__init__(msg)
  
imports: import sys
  import traceback
label_desc: Use image node_id 1 to create a new MetaflowNamespaceMismatch object from inherited base classes: MetaflowException with example: obj = MetaflowNamespaceMismatch(namespace)