You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: func_delete.go
    path of file: ./repos/go-gin-api/internal/api/admin
    
    the code of the file until where you have to start completion: package admin

import (
	"net/http"

	"github.com/xinliangnote/go-gin-api/internal/code"
	"github.com/xinliangnote/go-gin-api/internal/pkg/core"
)

type deleteRequest struct {
	Id string `uri:"id"` // HashID
}

type deleteResponse struct {
	Id int32 `json:"id"` // 主键ID
}

// Delete 删除管理员
// @Summary 删除管理员
// @Description 删除管理员
// @Tags API.admin
// @Accept json
// @Produce json
// @Param id path string true "hashId"
// @Success 200 {object} deleteResponse
// @Failure 400 {object} code.Failure
// @Router /api/admin/{id} [delete]
// @Security LoginToken
func (h
    
func (h *handler) Delete() core.HandlerFunc {
	return func(c core.Context) {
		req := new(deleteRequest)
		res := new(deleteResponse)
		if err := c.ShouldBindURI(req); err != nil {
			c.AbortWithError(core.Error(
				http.StatusBadRequest,
				code.ParamBindError,
				code.Text(code.ParamBindError)).WithError(err),
			)
			return
		}

		ids, err := h.hashids.HashidsDecode(req.Id)
		if err != nil {
			c.AbortWithError(core.Error(
				http.StatusBadRequest,
				code.HashIdsDecodeError,
				code.Text(code.HashIdsDecodeError)).WithError(err),
			)
			return
		}

		id := int32(ids[0])

		err = h.adminService.Delete(c, id)
		if err != nil {
			c.AbortWithError(core.Error(
				http.StatusBadRequest,
				code.AdminDeleteError,
				code.Text(code.AdminDeleteError)).WithError(err),
			)
			return
		}

		res.Id = id
		c.Payload(res)
	}
}