class Console::Filter

def self.[] **levels
	klass = Class.new(self)
	
	klass.instance_exec do
		const_set(:LEVELS, levels)
		const_set(:MINIMUM_LEVEL, levels.values.min)
		const_set(:MAXIMUM_LEVEL, levels.values.max)
		
		levels.each do |name, level|
			const_set(name.to_s.upcase, level)
			
			define_method(name) do |subject = nil, *arguments, **options, &block|
				if self.enabled?(subject, level)
					self.call(subject, *arguments, severity: name, **options, **@options, &block)
				end
			end
			
			define_method("#{name}!") do
				@level = level
			end
			
			define_method("#{name}?") do
				@level >= level
			end
		end
	end
	
	return klass
end