def self.align(io, help_block : Tuple) #

macro create(name = "app", info = nil, description = nil, usage_name = "Usage: ", command_name = "COMMAND", options_name = "OPTIONS", variables_name = "VARIABLES", help = "to show the help.", help_option = "help", argument_required = "argument required", unknown_command = "unknown command", unknown_option = "unknown option", unknown_variable = "unknown variable", action = nil, commands = NamedTupleLiteral, arguments = ArrayLiteral, options = NamedTupleLiteral, variables = NamedTupleLiteral) #