moduleGitlabmoduleMetrics# Class for calculating the difference between two numeric values.## Every call to `compared_with` updates the internal value. This makes it# possible to use a single Delta instance to calculate the delta over time# of an ever increasing number.## Example usage:## delta = Delta.new(0)## delta.compared_with(10) # => 10# delta.compared_with(15) # => 5# delta.compared_with(20) # => 5classDeltadefinitialize(value=0)@value=valueend# new_value - The value to compare with as a Numeric.## Returns a new Numeric (depending on the type of `new_value`).defcompared_with(new_value)delta=new_value-@value@value=new_valuedeltaendendendend