default:
		return nil, nil // Not a PAX format GNU sparse file.
	}
	hdr.Format.mayOnlyBe(FormatPAX)

	// Update hdr from GNU sparse PAX headers.
	if name := hdr.PAXRecords[paxGNUSparseName]; name != "" {
		hdr.Name = name
	}
	size := hdr.PAXRecords[paxGNUSparseSize]
	if size == "" {
		size = hdr.PAXRecords[paxGNUSparseRealSize]
	}
	if size != "" {
		n, err := strconv.ParseInt(size, 10, 64)

from dataclasses import dataclass

from fastapi import FastAPI


@dataclass
class Item:
    name: str
    price: float
    description: str | None = None
    tax: float | None = None


app = FastAPI()


@app.post("/items/")
async def create_item(item: Item):

```

这就是 "可调用对象"。

## 类作为依赖项 { #classes-as-dependencies_1 }

你可能会注意到，要创建一个 Python 类的实例，你可以使用相同的语法。

举个例子:

```Python
class Cat:
    def __init__(self, name: str):
        self.name = name


fluffy = Cat(name="Mr Fluffy")
```

在这个例子中, `fluffy` 是一个 `Cat` 类的实例。

为了创建 `fluffy`，你调用了 `Cat` 。

所以，Python 类也是 **可调用对象**。

因此，在 **FastAPI** 中，你可以使用一个 Python 类作为一个依赖项。

        // Verify the decoded data matches
        assertEquals(domainInfo.name.length, decodedInfo.name.length);
        assertEquals(domainInfo.name.maximum_length, decodedInfo.name.maximum_length);
        assertNotNull(decodedInfo.name.buffer);
        assertEquals(domainInfo.name.maximum_length / 2, decodedInfo.name.buffer.length);

        // Verify SID
        assertNotNull(decodedInfo.sid);

import model.Stage

class BuildDistributions(
    model: CIBuildModel,
    stage: Stage,
) : OsAwareBaseGradleBuildType(os = LINUX, stage = stage, init = {
        id("${model.projectId}_BuildDistributions")
        name = "Build Distributions"
        description = "Creation and verification of the distribution and documentation"

        applyDefaults(
            model,
            this,
            "packageBuild",

from typing import Any

import pytest
from fastapi import FastAPI
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel, ConfigDict, Field


@pytest.fixture(name="client")
def get_client():
    app = FastAPI()

    class ModelWithRef(BaseModel):
        ref: str = Field(validation_alias="$ref", serialization_alias="$ref")

# Generate CONTRIBUTORS.md: contributors.sh

# Tip for finding duplicates (besides scanning the output of CONTRIBUTORS.md for name
# duplicates that aren't also email duplicates): scan the output of:
#   git log --format='%aE - %aN' | sort -uf
#
# For explanation on this file format: man git-shortlog

Anand Babu (AB) Periasamy <******@****.***> Anand Babu (AB) Periasamy <******@****.***>
Anand Babu (AB) Periasamy <******@****.***> <******@****.***>

    /**
     * Constructs a SID from an RPC sid_t structure.
     *
     * @param sid the RPC sid_t structure
     * @param type the SID type
     * @param domainName the domain name for this SID
     * @param acctName the account name for this SID
     * @param decrementAuthority whether to decrement the authority count
     */

    protected void assertSpecifyPurpose() {
    }

    public static class HpSpecification {
        protected List<String> columnList = new ArrayList<>();

        public void doColumn(String name) {
            columnList.add(name);
        }

        public void columnId() {
            doColumn("_id");
        }

        public void columnCreatedBy() {
            doColumn("createdBy");
        }

    protected void assertSpecifyPurpose() {
    }

    public static class HpSpecification {
        protected List<String> columnList = new ArrayList<>();

        public void doColumn(String name) {
            columnList.add(name);
        }

        public void columnId() {
            doColumn("_id");
        }

        public void columnBoost() {
            doColumn("boost");
        }