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: json.go
    path of file: ./repos/echo
    
    the code of the file until where you have to start completion: // SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: Â© 2015 LabStack LLC and Echo contributors

package echo

import (
	"encoding/json"
	"fmt"
	"net/http"
)

// DefaultJSONSerializer implements JSON encoding using encoding/json.
type DefaultJSONSerializer struct{}

// Serialize converts an interface into a json and writes it to the response.
// You can opti
    
func (d DefaultJSONSerializer) Deserialize(c Context, i interface{}) error {
	err := json.NewDecoder(c.Request().Body).Decode(i)
	if ute, ok := err.(*json.UnmarshalTypeError); ok {
		return NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Unmarshal type error: expected=%v, got=%v, field=%v, offset=%v", ute.Type, ute.Value, ute.Field, ute.Offset)).SetInternal(err)
	} else if se, ok := err.(*json.SyntaxError); ok {
		return NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Syntax error: offset=%v, error=%v", se.Offset, se.Error())).SetInternal(err)
	}
	return err
}