Update histogram case class

Author: fiadliel

client/src/main/boilerplate/Histogram.scala.template

@@ -2,11 +2,16 @@ package org.lyranthe.prometheus.client
 
 import histogram._
 
-case class Histogram(name: MetricName, help: String)(implicit hb: HistogramBuckets) {
-  def labels(): Histogram0 = Histogram0(name, help, hb.buckets)
+case class Histogram(name: MetricName, help: String, buckets: List[Double]) {
+  def labels(): Histogram0 = Histogram0(name, help, buckets)
 
   [#
-  def labels([#labelName1: LabelName#]): Histogram1 = Histogram1(name, help, List([#labelName1#]), hb.buckets)
+  def labels([#labelName1: LabelName#]): Histogram1 = Histogram1(name, help, List([#labelName1#]), buckets)
   #
   ]
 }
+
+object Histogram {
+  def apply(name: MetricName, help: String)(implicit hb: HistogramBuckets): Histogram =
+    Histogram(name, help, hb.buckets)
+}