class WebMock::Response

def evaluate(request_signature)
  self.body = @body.call(request_signature) if @body.is_a?(Proc)
  self.headers = @headers.call(request_signature) if @headers.is_a?(Proc)
  self.status = @status.call(request_signature) if @status.is_a?(Proc)
  @should_timeout = @should_timeout.call(request_signature) if @should_timeout.is_a?(Proc)
  @exception = @exception.call(request_signature) if @exception.is_a?(Proc)
  self
end