def _describe_command(self, command: Command, **options: Any) -> None:
command.merge_application_definition(False)
description = command.description
if description:
self._write("<b>Description:</b>")
self._write("\n")
self._write(" " + description)
self._write("\n\n")
self._write("<b>Usage:</b>")
for usage in [command.synopsis(True)
] + command.aliases + command.usages:
self._write("\n")
self._write(" " + Formatter.escape(usage))
self._write("\n")
definition = command.definition
if definition.options or definition.arguments:
self._write("\n")
self._describe_definition(definition, **options)
self._write("\n")
help_text = command.processed_help
if help_text and help_text != description:
self._write("\n")
self._write("<b>Help:</b>")
self._write("\n")
self._write(" " + help_text.replace("\n", "\n "))
self._write("\n")
