// To test that we pick the first constant alphabetically
    @SuppressWarnings("unused")
    public static final WithPublicConstants SECOND = new WithPublicConstants();
  }

  private static class FirstConstantIsNull {
    // To test that null constant is ignored
    @SuppressWarnings("unused")
    public static final @Nullable FirstConstantIsNull FIRST = null;

	mysqlDeleteRow = `DELETE FROM %s WHERE key_hash = SHA2(?, 256);`
	mysqlInsertRow = `INSERT INTO %s (event_time, event_data) VALUES (?, ?);`
)

// MySQL related constants
const (
	MySQLFormat             = "format"
	MySQLDSNString          = "dsn_string"
	MySQLTable              = "table"
	MySQLHost               = "host"
	MySQLPort               = "port"

	v3 "istio.io/istio/pilot/pkg/xds/v3"
	"istio.io/istio/pkg/config"
	analyzerutil "istio.io/istio/pkg/config/analysis/analyzers/util"
	"istio.io/istio/pkg/config/constants"
	"istio.io/istio/pkg/config/host"
	configKube "istio.io/istio/pkg/config/kube"
	"istio.io/istio/pkg/config/mesh"
	protocolinstance "istio.io/istio/pkg/config/protocol"
	"istio.io/istio/pkg/kube"

We can't rely on application threads to read data from the socket. Application threads are transient: sometimes they're reading and writing and sometimes they're off doing application-layer things. But the socket is permanent, and it needs constant attention: we dispatch all incoming frames so the connection is good-to-go when the application layer needs it.

So we have a dedicated thread for every socket that just reads frames and dispatches them.

pkg go/ast, type IndexListExpr struct, Lbrack token.Pos
pkg go/ast, type IndexListExpr struct, Rbrack token.Pos
pkg go/ast, type IndexListExpr struct, X Expr
pkg go/ast, type TypeSpec struct, TypeParams *FieldList
pkg go/constant, method (Kind) String() string
pkg go/token, const TILDE = 88
pkg go/token, const TILDE Token
pkg go/types, func Instantiate(*Context, Type, []Type, bool) (Type, error)
pkg go/types, func NewContext() *Context

	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/once"
	"github.com/minio/minio/internal/store"
	xnet "github.com/minio/pkg/v3/net"
	"github.com/pkg/errors"
)

// Elastic constants
const (
	ElasticFormat     = "format"
	ElasticURL        = "url"
	ElasticIndex      = "index"
	ElasticQueueDir   = "queue_dir"
	ElasticQueueLimit = "queue_limit"
	ElasticUsername   = "username"

```Python hl_lines="7"
{!../../docs_src/query_params_str_validations/tutorial006.py!}
```

/// info | "정보"

이전에 `...`를 본적이 없다면: 특별한 단일값으로, <a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">파이썬의 일부이며 "Ellipsis"라 부릅니다</a>.

///

이렇게 하면 **FastAPI**가 이 매개변수는 필수임을 알 수 있습니다.

## 쿼리 매개변수 리스트 / 다중값

```Python hl_lines="7"
{!../../docs_src/query_params_str_validations/tutorial006b.py!}
```

/// info

🚥 👆 🚫 👀 👈 `...` ⏭: ⚫️ 🎁 👁 💲, ⚫️ <a href="https://docs.python.org/3/library/constants.html#Ellipsis" class="external-link" target="_blank">🍕 🐍 &amp; 🤙 "❕"</a>.

⚫️ ⚙️ Pydantic &amp; FastAPI 🎯 📣 👈 💲 ✔.

///

👉 🔜 ➡️ **FastAPI** 💭 👈 👉 🔢 ✔.

### ✔ ⏮️ `None`

from fastapi.dependencies.utils import (
    _get_flat_fields_from_params,
    get_flat_dependant,
    get_flat_params,
)
from fastapi.encoders import jsonable_encoder
from fastapi.openapi.constants import METHODS_WITH_BODY, REF_PREFIX, REF_TEMPLATE
from fastapi.openapi.models import OpenAPI
from fastapi.params import Body, ParamTypes
from fastapi.responses import Response
from fastapi.types import ModelNameMap

   * key, the choice of {@link KeyAbsentBehavior} decides which index is returned.
   *
   * <p>This method runs in log(n) time on random-access lists, which offer near-constant-time
   * access to each list element.
   *
   * @param list the list to be searched.
   * @param key the value to be searched for.
   * @param comparator the comparator by which the list is ordered.