msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	rd := msgp.NewEndlessReader(buf.Bytes(), b)
	dc := msgp.NewReader(rd)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		err := v.DecodeMsg(dc)
		if err != nil {
			b.Fatal(err)
		}
	}
}

func TestMarshalUnmarshalxlMetaV2DeleteMarker(t *testing.T) {
	v := xlMetaV2DeleteMarker{}
	bts, err := v.MarshalMsg(nil)
	if err != nil {

	mr := msgpNewReader(ro)
	defer readMsgpReaderPoolPut(mr)

	done := false
	for {
		var entry jentry
		err := entry.DecodeMsg(mr)
		if errors.Is(err, io.EOF) {
			done = true
			break
		}
		if err != nil {
			logger.LogIf(ctx, fmt.Errorf("tier-journal: failed to decode journal entry %s", err))
			break
		}
		err = fn(ctx, entry.ObjName, entry.VersionID, entry.TierName)

		Ciphertext []byte `json:"ciphertext"`
	}
	return json.Marshal(JSON{
		KeyID:      d.KeyID,
		Ciphertext: d.Ciphertext,
	})
}

// UnmarshalText tries to decode text as JSON representation
// of a DEK and sets DEK's key ID and ciphertext to the
// decoded values.
//
// It sets DEK's plaintext to nil.
func (d *DEK) UnmarshalText(text []byte) error {
	type JSON struct {
		KeyID      string `json:"keyid"`

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.bouncycastle.util.encoders.Base64;

import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.Config;
import jcifs.config.PropertyConfiguration;
import jcifs.context.BaseContext;

		bs, err := item.je.MarshalMsg(nil)
		if err != nil {
			t.Fatal(err)
		}
		b.Write(bs)
	}

	mr := msgp.NewReader(&b)
	for i, item := range readOldToNewCases {
		var je jentry
		err := je.DecodeMsg(mr)
		if err != nil {
			t.Fatal(err)
		}
		if je != item.exp {
			t.Errorf("Case %d: Expected: %v Got: %v", i, item.exp, je)
		}
	}
}

  "token_type": "Bearer",
  "expires_in": 3600
}
```

### 4. JWT Claims

The id_token received is a signed JSON Web Token (JWT). Use a JWT decoder to decode the id_token to access the payload of the token that includes following JWT claims:

          // otherwise try to presize a StringBuilder
          // it is kind of lame that we need to construct a decoder to access this value.
          // if this is a concern we could add special cases for some known charsets (like utf8)
          // or we could avoid inputstreamreader and use the decoder api directly
          // TODO(lukes): in a real implementation we would need to handle overflow conditions

          // otherwise try to presize a StringBuilder
          // it is kind of lame that we need to construct a decoder to access this value.
          // if this is a concern we could add special cases for some known charsets (like utf8)
          // or we could avoid inputstreamreader and use the decoder api directly
          // TODO(lukes): in a real implementation we would need to handle overflow conditions

from datetime import datetime
from typing import Union

from fastapi import FastAPI
from fastapi.encoders import jsonable_encoder
from pydantic import BaseModel

fake_db = {}


class Item(BaseModel):
    title: str
    timestamp: datetime
    description: Union[str, None] = None


app = FastAPI()


@app.put("/items/{id}")
def update_item(id: str, item: Item):
    json_compatible_item_data = jsonable_encoder(item)

	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	rd := msgp.NewEndlessReader(buf.Bytes(), b)
	dc := msgp.NewReader(rd)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		err := v.DecodeMsg(dc)
		if err != nil {
			b.Fatal(err)
		}
	}
}

func TestMarshalUnmarshalObjectInfo(t *testing.T) {
	v := ObjectInfo{}
	bts, err := v.MarshalMsg(nil)
	if err != nil {
		t.Fatal(err)
	}