Name of the mentity this command is about

Alternatively you can directly provide the mentity.

Property definitions

nitc $ CmdEntity :: mentity_name
	# Name of the mentity this command is about
	#
	# Alternatively you can directly provide the `mentity`.
	var mentity_name: nullable String = null is optional, writable
src/doc/commands/commands_base.nit:123,2--126,63