whole_func_string: function Counter(key, tags, host) {
      Metric.call(this, key, tags, host);
      this.value = 0;
  }
func_code_string: function Counter(key, tags, host) {
      Metric.call(this, key, tags, host);
      this.value = 0;
  }
func_documentation_string: COUNTER ------- Increment the counter by the given *value*. Optionally, specify a list of *tags* to associate with the metric. This is useful for counting things such as incrementing a counter each time a page is requested.