refactor: TestCase/IConfig models

hrp/config.go

@@ -7,6 +7,10 @@ import (
 	"github.com/httprunner/httprunner/v4/hrp/pkg/uixt"
 )
 
+type IConfig interface {
+	Get() *TConfig
+}
+
 // NewConfig returns a new constructed testcase config with specified testcase name.
 func NewConfig(name string) *TConfig {
 	return &TConfig{
@@ -39,6 +43,10 @@ type TConfig struct {
 	PluginSetting     *PluginConfig          `json:"plugin,omitempty" yaml:"plugin,omitempty"` // plugin config
 }
 
+func (c *TConfig) Get() *TConfig {
+	return c
+}
+
 // WithVariables sets variables for current testcase.
 func (c *TConfig) WithVariables(variables map[string]interface{}) *TConfig {
 	c.Variables = variables