class ActiveSupport::Duration
def initialize(value, parts, variable = nil) # :nodoc:
def initialize(value, parts, variable = nil) # :nodoc: @value, @parts = value, parts @parts.reject! { |k, v| v.zero? } unless value == 0 @parts.freeze @variable = variable if @variable.nil? @variable = @parts.any? { |part, _| VARIABLE_PARTS.include?(part) } end end