```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float
    is_offer: Union[bool, None] = None


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):

                            <la:message key="labels.dict_kuromoji_title"/>
                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">
                            <li class="breadcrumb-item"><la:link href="/admin/dict">
                                <la:message key="labels.dict_list_link"/>
                            </la:link></li>

						return
					}
					if configRetriableErrors(err) {
						decomLogIf(ctx, fmt.Errorf("Unable to resume decommission of pools %v: %w: retrying..", pools, err))
						time.Sleep(time.Second + time.Duration(r.Float64()*float64(5*time.Second)))
						continue
					}
					decomLogIf(ctx, fmt.Errorf("Unable to resume decommission of pool %v: %w", pools, err))
					return
				}
			}
		}()
	}

	return nil
}

                            <la:message key="labels.crawling_info_configuration"/>
                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">
                            <li class="breadcrumb-item active"><la:link href="/admin/crawlinginfo">
                                <la:message key="labels.crawling_info_title"/>
                            </la:link></li>

                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">
                            <li class="breadcrumb-item"><la:link href="/admin/searchlog">
                                <la:message key="labels.searchlog_configuration_link_top"/>

**FastAPI** 🔜 🤔 🔠 👫 & ✊ 📊 ⚪️➡️ ☑ 🥉.

{* ../../docs_src/body/tutorial004.py hl[18] *}

🔢 🔢 🔜 🤔 ⏩:

* 🚥 🔢 📣 **➡**, ⚫️ 🔜 ⚙️ ➡ 🔢.
* 🚥 🔢 **⭐ 🆎** (💖 `int`, `float`, `str`, `bool`, ♒️) ⚫️ 🔜 🔬 **🔢** 🔢.
* 🚥 🔢 📣 🆎 **Pydantic 🏷**, ⚫️ 🔜 🔬 📨 **💪**.

/// note

FastAPI 🔜 💭 👈 💲 `q` 🚫 ✔ ↩️ 🔢 💲 `= None`.

!important;\n    align-self: stretch !important;\n  }\n}\n\n.float-left {\n  float: left !important;\n}\n\n.float-right {\n  float: right !important;\n}\n\n.float-none {\n  float: none !important;\n}\n\n@media (min-width: 576px) {\n  .float-sm-left {\n    float: left !important;\n  }\n  .float-sm-right {\n    float: right !important;\n  }\n  .float-sm-none {\n    float: none !important;\n  }\n}\n\n@media (min-width: 768px) {\n  .float-md-left {\n    float: left !important;\n  }\n  .float-md-right {\n    float:...

                        elevateWord.setReading(reading);
                        elevateWord.setPermissions(permissions);
                        elevateWord.setBoost(StringUtil.isBlank(boost) ? 1.0f : Float.parseFloat(boost));
                        elevateWord.setCreatedBy(Constants.SYSTEM_USER);
                        elevateWord.setCreatedTime(now);
                        elevateWordBhv.insert(elevateWord);

      assertEquals(
          new Sink(4).putUnencodedChars(s).hash(), new Sink(4).putString(s, UTF_16LE).hash());
    }
  }

  public void testFloat() {
    Sink sink = new Sink(4);
    sink.putFloat(Float.intBitsToFloat(0x04030201));
    HashCode unused = sink.hash();
    sink.assertInvariants(4);
    sink.assertBytes(new byte[] {1, 2, 3, 4});
  }

  public void testDouble() {
    Sink sink = new Sink(8);

                            <la:message key="labels.dict_stopwords_title"/>
                        </h1>
                    </div>
                    <div class="col-sm-6">
                        <ol class="breadcrumb float-sm-right">
                            <li class="breadcrumb-item"><la:link href="/admin/dict">
                                <la:message key="labels.dict_list_link"/>
                            </la:link></li>