* from these Documents as needed for superior formatting preservation.
 */
public class PomDiscovery {

    private PomDiscovery() {
        // noop
    }

    /**
     * Discovers and loads all POM files starting from the given directory.
     *
     * @param startDirectory the directory to start discovery from
     * @return a map of Path to Document for all discovered POM files

    // Hope to catch some stragglers queued up behind our finalizable object
    System.runFinalization();
  }

  private static RuntimeException formatRuntimeException(String format, Object... args) {
    return new RuntimeException(String.format(Locale.ROOT, format, args));
  }

     * @return the hexadecimal string representation
     */
    public static String bin_to_hex(int value, final int length) {
        final char[] arr = new char[length];
        int ai = arr.length;
        while (ai-- > 0) {
            arr[ai] = HEXCHARS[value & 0xF];
            value >>>= 4;
        }
        return new String(arr);
    }

    private static byte B(final int i) {

    }

    int type, length;

    /**
     * Writes the packet to the specified byte array in wire format.
     *
     * @param dst the destination byte array to write to
     * @param dstIndex the starting index in the destination array
     * @return the number of bytes written
     */
    public int writeWireFormat(final byte[] dst, final int dstIndex) {
        length = writeTrailerWireFormat(dst, dstIndex + HEADER_LENGTH);

	}
	for _, tt := range tests {
		t.Run(tt.want, func(t *testing.T) {
			if got := tt.arn.String(); got != tt.want {
				t.Errorf("ARN.String() = %v, want %v", got, tt.want)
			}
		})
	}
}

func TestNewIAMRoleARN(t *testing.T) {
	type args struct {
		resourceID   string
		serverRegion string
	}
	tests := []struct {
		name    string
		args    args
		want    ARN
		wantErr bool
	}{
		{

For example, if you want to read or manipulate the request body before it is processed by your application.

/// danger

This is an "advanced" feature.

If you are just starting with **FastAPI** you might want to skip this section.

///

## Use cases { #use-cases }

Some use cases include:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:solid">main.py</u>

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting development server 🚀

             Searching for package file structure from directories
             with <font color="#3465A4">__init__.py</font> files

#### Figure 2 - KMS key hierarchy

```
                                                          CMK (master key)

-direction:column!important}.flex-row-reverse{flex-direction:row-reverse!important}.flex-column-reverse{flex-direction:column-reverse!important}.flex-grow-0{flex-grow:0!important}.flex-grow-1{flex-grow:1!important}.flex-shrink-0{flex-shrink:0!important}.flex-shrink-1{flex-shrink:1!important}.flex-wrap{flex-wrap:wrap!important}.flex-nowrap{flex-wrap:nowrap!important}.flex-wrap-reverse{flex-wrap:wrap-reverse!important}.justify-content-start{justify-content:flex-start!important}.justify-content-end...

## 附加的服务器

/// warning | 警告

此用例较难，可以跳过。

///

默认情况下，**FastAPI** 使用 `root_path` 的链接在 OpenAPI 概图中创建 `server`。

但也可以使用其它备选 `servers`，例如，需要同一个 API 文档与 staging 和生产环境交互。

如果传递自定义 `servers` 列表，并有 `root_path`（ 因为 API 使用了代理），**FastAPI** 会在列表开头使用这个 `root_path` 插入**服务器**。

例如：

{* ../../docs_src/behind_a_proxy/tutorial003.py hl[4:7] *}

这段代码生产如下 OpenAPI 概图：