Buckets: histBuckets,
		},
		[]string{"api"},
	)
	observations := []struct {
		val   float64
		label string
	}{
		{
			val:   0.02,
			label: labels[0],
		},
		{
			val:   0.07,
			label: labels[1],
		},
		{
			val:   0.11,
			label: labels[1],
		},
		{
			val:   0.19,
			label: labels[1],
		},
		{
			val:   0.31,
			label: labels[1],
		},
		{