snapshot := *v
			req.GetBody = func() (io.ReadCloser, error) {
				r := snapshot
				return io.NopCloser(&r), nil
			}
		default:
			// This is where we'd set it to -1 (at least
			// if body != NoBody) to mean unknown, but
			// that broke people during the Go 1.8 testing
			// period. People depend on it being 0 I
			// guess. Maybe retry later. See Issue 18117.
		}
		// For client requests, Request.ContentLength of 0

    #  Elements of this map are as below:
    #   o url: (NotRequired - Default same as main schema)
    #   o schema: (Required: if empty schema means valid schema, not required)
    #   o user: (NotRequired - Default same as main schema)
    #   o password: (NotRequired - Default same as main schema)
    #   o propertiesMap: (NotRequired - Default map:{})

    Set<DependencyScope> dependencyScopes();

    PathScope MAIN_COMPILE = pathScope(
            "main-compile",
            ProjectScope.MAIN,
            DependencyScope.COMPILE_ONLY,
            DependencyScope.COMPILE,
            DependencyScope.PROVIDED);

    PathScope MAIN_RUNTIME =
            pathScope("main-runtime", ProjectScope.MAIN, DependencyScope.COMPILE, DependencyScope.RUNTIME);

    PathScope TEST_COMPILE = pathScope(

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all

  wget "http://old-releases.ubuntu.com/ubuntu/pool/main/e/eglibc/libc6_2.12.1-0ubuntu6_amd64.deb" && \
      unar "libc6_2.12.1-0ubuntu6_amd64.deb" && \
      tar -C "${TARGET}" -xvzf "libc6_2.12.1-0ubuntu6_amd64/data.tar.gz" && \
      rm -rf "libc6_2.12.1-0ubuntu6_amd64.deb" "libc6_2.12.1-0ubuntu6_amd64"
  # Download binary glibc 2.12 development library release.
  wget "http://old-releases.ubuntu.com/ubuntu/pool/main/e/eglibc/libc6-dev_2.12.1-0ubuntu6_amd64.deb" && \

http://www.apache.org/licenses/ 

1. Definitions.

"License" shall mean the terms and conditions for use, reproduction, and 
distribution as defined by Sections 1 through 9 of this document. 

"Licensor" shall mean the copyright owner or entity authorized by the 
copyright owner that is granting the License. 

"Legal Entity" shall mean the union of the acting entity and all other 

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all

{!> ../../docs_src/settings/app02_an_py39/main.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="6  12-13"
{!> ../../docs_src/settings/app02_an/main.py!}
```

////

//// tab | Python 3.8+ 非注解版本

/// tip

如果可能，请尽量使用 `Annotated` 版本。

///

```Python hl_lines="5  11-12"
{!> ../../docs_src/settings/app02/main.py!}
```

////

/// tip