class_docstr: Serializes any CheckFailure instance into an ipywidgets.Widget instance.
  
  Parameters
  ----------
  value : CheckFailure
      CheckFailure instance that needed to be serialized.
docstr: Prepare header summary.
  
  Returns
  -------
  ipywidgets.HTML
code: def prepare_summary(self) -> HTML:
      """Prepare header summary.
  
      Returns
      -------
      ipywidgets.HTML
      """
      return HTML(value=self._html_serializer.prepare_summary())
  
file_path: deepchecks/deepchecks/core/serialization/check_failure/widget.py
imports: from ipywidgets import HTML, VBox
  from deepchecks.core import check_result
  from deepchecks.core.serialization.abc import WidgetSerializer
  from deepchecks.core.serialization.common import normalize_widget_style
  from .None import html
label_desc: Use image node_id 4 for calling the CheckFailureSerializer obj's underlying member method code with example usage: obj.prepare_summary() and returns: HTML