diff --git a/config/config.go b/config/config.go
index c5f71bc..f435985 100644
--- a/config/config.go
+++ b/config/config.go
@@ -6,6 +6,7 @@ import (
 	"os"
 	"time"
 
+	. "github.com/aykhans/dodo/types"
 	"github.com/aykhans/dodo/utils"
 	"github.com/jedib0t/go-pretty/v6/table"
 )
@@ -92,12 +93,12 @@ func (config *RequestConfig) GetMaxConns(minConns uint) uint {
 }
 
 type Config struct {
-	Method       string             `json:"method" validate:"http_method"` // custom validations: http_method
-	URL          string             `json:"url" validate:"http_url,required"`
-	Timeout      uint32             `json:"timeout" validate:"gte=1,lte=100000"`
-	DodosCount   uint               `json:"dodos_count" validate:"gte=1"`
-	RequestCount uint               `json:"request_count" validation_name:"request-count" validate:"gte=1"`
-	NoProxyCheck utils.Option[bool] `json:"no_proxy_check"`
+	Method       string       `json:"method" validate:"http_method"` // custom validations: http_method
+	URL          string       `json:"url" validate:"http_url,required"`
+	Timeout      uint32       `json:"timeout" validate:"gte=1,lte=100000"`
+	DodosCount   uint         `json:"dodos_count" validate:"gte=1"`
+	RequestCount uint         `json:"request_count" validation_name:"request-count" validate:"gte=1"`
+	NoProxyCheck Option[bool] `json:"no_proxy_check"`
 }
 
 func NewConfig(
@@ -105,10 +106,10 @@ func NewConfig(
 	timeout uint32,
 	dodosCount uint,
 	requestCount uint,
-	noProxyCheck utils.Option[bool],
+	noProxyCheck Option[bool],
 ) *Config {
 	if noProxyCheck == nil {
-		noProxyCheck = utils.NewNoneOption[bool]()
+		noProxyCheck = NewNoneOption[bool]()
 	}
 
 	return &Config{
@@ -155,7 +156,7 @@ func (config *Config) SetDefaults() {
 		config.RequestCount = DefaultRequestCount
 	}
 	if config.NoProxyCheck.IsNone() {
-		config.NoProxyCheck = utils.NewOption(false)
+		config.NoProxyCheck = NewOption(false)
 	}
 }
 
diff --git a/readers/cli.go b/readers/cli.go
index b16b556..6ed52a4 100644
--- a/readers/cli.go
+++ b/readers/cli.go
@@ -5,6 +5,7 @@ import (
 
 	"github.com/aykhans/dodo/config"
 	"github.com/aykhans/dodo/custom_errors"
+	. "github.com/aykhans/dodo/types"
 	"github.com/aykhans/dodo/utils"
 	"github.com/spf13/cobra"
 	"github.com/spf13/pflag"
@@ -61,7 +62,7 @@ func CLIConfigReader() (*config.CLIConfig, error) {
 		case "timeout":
 			cliConfig.Timeout = timeout
 		case "no-proxy-check":
-			cliConfig.NoProxyCheck = utils.NewOption(noProxyCheck)
+			cliConfig.NoProxyCheck = NewOption(noProxyCheck)
 		}
 	})
 	if returnNil {
diff --git a/types/durations.go b/types/durations.go
new file mode 100644
index 0000000..18fcf9c
--- /dev/null
+++ b/types/durations.go
@@ -0,0 +1,41 @@
+package types
+
+import (
+	"sort"
+	"time"
+)
+
+type Durations []time.Duration
+
+func (d Durations) Sort(ascending ...bool) {
+	// If ascending is provided and is false, sort in descending order
+	if len(ascending) > 0 && ascending[0] == false {
+		sort.Slice(d, func(i, j int) bool {
+			return d[i] > d[j]
+		})
+	} else { // Otherwise, sort in ascending order
+		sort.Slice(d, func(i, j int) bool {
+			return d[i] < d[j]
+		})
+	}
+}
+
+func (d Durations) First() *time.Duration {
+	return &d[0]
+}
+
+func (d Durations) Last() *time.Duration {
+	return &d[len(d)-1]
+}
+
+func (d Durations) Sum() time.Duration {
+	sum := time.Duration(0)
+	for _, duration := range d {
+		sum += duration
+	}
+	return sum
+}
+
+func (d Durations) Avg() time.Duration {
+	return d.Sum() / time.Duration(len(d))
+}
diff --git a/utils/types.go b/types/option.go
similarity index 99%
rename from utils/types.go
rename to types/option.go
index 92f65b9..55dc6ee 100644
--- a/utils/types.go
+++ b/types/option.go
@@ -1,4 +1,4 @@
-package utils
+package types
 
 import (
 	"encoding/json"