module ElasticAPM::Deprecations

def deprecate(name, replacement = nil)
  class_eval <<-RUBY, __FILE__, __LINE__ + 1
    alias :"#{name}__deprecated" :"#{name}"
    def #{name}(*args, &block)
      warn "[ElasticAPM] [DEPRECATED] `#{name}' is being removed. " \
        "#{replacement && "See `#{replacement}'."}" \
        "\nCalled from \#{caller.first}"
      #{name}__deprecated(*args, &block)
    end
  RUBY
end