/** metadata URI */
    protected String uri;

    /** is metadata found anywhere */
    protected boolean resolved = false;

    /** does the actual artifact for this metadata exists */
    protected boolean artifactExists = false;
    /** artifact URI */
    protected String artifactUri;

    /** error message  */
    private String error;

同时，HTTP 的请求头不区分大小写，可以使用 Python 标准样式（即 **snake_case**）进行声明。

因此，可以像在 Python 代码中一样使用 `user_agent` ，无需把首字母大写为 `User_Agent` 等形式。

如需禁用下划线自动转换为连字符，可以把 `Header` 的 `convert_underscores` 参数设置为 `False`：

//// tab | Python 3.10+

```Python hl_lines="10"
{!> ../../docs_src/header_params/tutorial002_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="11"

                    return true
                }
            }
        } catch (AbortException ignore) {
            return false
        }
        return false
    }

    static class AbortException extends RuntimeException {
    }

    static String showFileOnCommit(String commit, String filePath) {

@needs_py39
def test_internal_server_error():
    from docs_src.dependencies.tutorial008c_an_py39 import app

    client = TestClient(app, raise_server_exceptions=False)
    response = client.get("/items/portal-gun")
    assert response.status_code == 500, response.text

		riscv.AAMOMINW, riscv.AAMOMIND, riscv.AAMOMINUW, riscv.AAMOMINUD,
		riscv.AAMOMAXW, riscv.AAMOMAXD, riscv.AAMOMAXUW, riscv.AAMOMAXUD:
		return true
	}
	return false

	xbufio "github.com/philhofer/fwd"
	"github.com/tinylib/msgp/msgp"
)

func isNetworkError(err error) bool {
	if err == nil {
		return false
	}

	if nerr, ok := err.(*rest.NetworkError); ok {
		if down := xnet.IsNetworkOrHostDown(nerr.Err, false); down {
			return true
		}
		if errors.Is(nerr.Err, rest.ErrClientClosed) {
			return true
		}
	}
	if errors.Is(err, grid.ErrDisconnected) {

config_setting(
    name = "disable_mlir_bridge",
    define_values = {"enable_mlir_bridge": "false"},
    visibility = ["//visibility:public"],
)

# This flag enables experimental TPU support
bool_flag(
    name = "enable_tpu_support",
    build_setting_default = False,
)

config_setting(
    name = "with_tpu_support_define",
    define_values = {"with_tpu_support": "true"},

            writeTimeoutMillis = 10_000,
            socketConnectTimeoutMillis = 10_000,
            socketReadTimeoutMillis = 10_000,
            pingIntervalMillis = 10_000,
            retryOnConnectionFailure = false,
            fastFallback = true,
            address = address,
            routeDatabase = RouteDatabase(),
            connectionUser = user,
          ),
          taskRunner,
        )
      },

            return null;
        });
        charMappingService.store(body.dictId, entity);
        return asJson(
                new ApiResult.ApiUpdateResponse().id(String.valueOf(entity.getId())).created(false).status(ApiResult.Status.OK).result());
    }

    // DELETE /api/admin/dict/mapping/setting/{dictId}/{id}
    @Execute
    public JsonResponse<ApiResult> delete$setting(final String dictId, final long id) {

            return null;
        });
        stemmerOverrideService.store(body.dictId, entity);
        return asJson(
                new ApiResult.ApiUpdateResponse().id(String.valueOf(entity.getId())).created(false).status(ApiResult.Status.OK).result());
    }

    // DELETE /api/admin/dict/stemmerOverride/setting/{dictId}/{id}
    @Execute
    public JsonResponse<ApiResult> delete$setting(final String dictId, final long id) {