old_contents: """Set default parameters and jupyter display format."""
  
  __all_ = ['set_default_engine', 'set_default_format', 'set_jupyter_format']
  
  
  def set_default_engine(engine: str) -> str:
      """Change the default engine, return the old default value.
  
      Args:
          engine: new default engine for all present and newly created instances.
  
      Returns:
          The old default engine.
      """
      from . import parameters
  
      parameters.verify_engine(engine)
  
      old_default_engine = parameters.Parameters._engine
      parameters.Parameters._engine = engine
      return old_default_engine
  
  
  def set_default_format(format: str) -> str:
      """Change the default format, return the old default value.
  
      Args:
          format: new default format for all present and newly created instances.
  
      Returns:
          The old default format.
      """
      from . import parameters
  
      parameters.verify_format(format)
  
      old_default_format = parameters.Parameters._format
      parameters.Parameters._format = format
      return old_default_format
  
  
  def set_jupyter_format(jupyter_format: str) -> str:
      """Change the default mimetype format for ``_repr_mimebundle_(include, exclude)``and return the old value.
  
      Args:
          jupyter_format: new display format for all present and newly created instances.
  
      Returns:
          The old default display format.
      """
      from . import jupyter_integration
  
      mimetype = jupyter_integration.get_jupyter_format_mimetype(jupyter_format)
  
      old_mimetype = jupyter_integration.JupyterIntegration._jupyter_mimetype
      old_format = jupyter_integration.get_jupyter_mimetype_format(old_mimetype)
  
      jupyter_integration.JupyterIntegration._jupyter_mimetype = mimetype
      return old_format
  
new_contents: """Set default parameters and jupyter display format."""
  
  __all_ = ['set_default_engine', 'set_default_format', 'set_jupyter_format']
  
  
  def set_default_engine(engine: str) -> str:
      """Change the default engine, return the old default value.
  
      Args:
          engine: new default engine for all present and newly created instances.
  
      Returns:
          The old default engine.
      """
      from . import parameters
  
      parameters.verify_engine(engine)
  
      old_default_engine = parameters.Parameters._engine
      parameters.Parameters._engine = engine
      return old_default_engine
  
  
  def set_default_format(format: str) -> str:
      """Change the default format, return the old default value.
  
      Args:
          format: new default format for all present and newly created instances.
  
      Returns:
          The old default format.
      """
      from . import parameters
  
      parameters.verify_format(format)
  
      old_default_format = parameters.Parameters._format
      parameters.Parameters._format = format
      return old_default_format
  
  
  def set_jupyter_format(jupyter_format: str) -> str:
      """Change the default mimetype format for ``_repr_mimebundle_()`` and return the old value.
  
      Args:
          jupyter_format: new display format for all present and newly created instances.
  
      Returns:
          The old default display format.
      """
      from . import jupyter_integration
  
      mimetype = jupyter_integration.get_jupyter_format_mimetype(jupyter_format)
  
      old_mimetype = jupyter_integration.JupyterIntegration._jupyter_mimetype
      old_format = jupyter_integration.get_jupyter_mimetype_format(old_mimetype)
  
      jupyter_integration.JupyterIntegration._jupyter_mimetype = mimetype
      return old_format
  
subject: fix markup