code: def show_uml_graph(*args, **kwargs):
      from cStringIO import StringIO
      from PIL import Image
  
      iostream = StringIO(
          create_uml_graph(*args, **kwargs).create_png()
      )
      Image.open(iostream).show(
          command=kwargs.get("command", "gwenview")
      )
  
file_path: evadb/script/docs/catalog_plotter.py
imports: from evadb.catalog.catalog_manager import CatalogManager
  from evadb.configuration.configuration_manager import ConfigurationManager
  from sqlalchemy.orm.properties import RelationshipProperty
  import pydot
  import types
  from sqlalchemy.dialects.postgresql.base import PGDialect
  from sqlalchemy import MetaData, Table, text, ForeignKeyConstraint
label_desc: Use image node_id 6 for calling a global function with example usage: show_uml_graph() without return types