from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    model_config = {"extra": "forbid"}

    host: str
    save_data: bool
    if_modified_since: str | None = None
    traceparent: str | None = None
    x_tag: list[str] = []


@app.get("/items/")
async def read_items(headers: Annotated[CommonHeaders, Header()]):

from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    model_config = {"extra": "forbid"}

    host: str
    save_data: bool
    if_modified_since: Union[str, None] = None
    traceparent: Union[str, None] = None
    x_tag: list[str] = []


@app.get("/items/")
async def read_items(headers: CommonHeaders = Header()):

from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    model_config = {"extra": "forbid"}

    host: str
    save_data: bool
    if_modified_since: Union[str, None] = None
    traceparent: Union[str, None] = None
    x_tag: list[str] = []


@app.get("/items/")
async def read_items(headers: Annotated[CommonHeaders, Header()]):

from pydantic import BaseModel
from typing_extensions import Annotated

app = FastAPI()


class CommonHeaders(BaseModel):
    host: str
    save_data: bool
    if_modified_since: Union[str, None] = None
    traceparent: Union[str, None] = None
    x_tag: List[str] = []


@app.get("/items/")
async def read_items(headers: Annotated[CommonHeaders, Header()]):

app = FastAPI()


class CommonHeaders(BaseModel):
    class Config:
        extra = "forbid"

    host: str
    save_data: bool
    if_modified_since: Union[str, None] = None
    traceparent: Union[str, None] = None
    x_tag: list[str] = []


@app.get("/items/")
async def read_items(headers: Annotated[CommonHeaders, Header()]):

    URL url1 = new URL("file:/a");
    URL url2 = new URL("file:/b");
    URLClassLoader grandParent = new URLClassLoader(new URL[] {url1}, null);
    URLClassLoader parent = new URLClassLoader(new URL[] {url2}, grandParent);
    assertThat(ClassPath.getClassPathEntries(new ClassLoader(parent) {}))
        .containsExactly(new File("/a"), grandParent, new File("/b"), parent);
  }

- **Overhauled metrics**: Kubernetes has previously made extensive use of a global metrics registry to register metrics to be exposed. By implementing a metrics registry, metrics are registered in more transparent means. Previously, Kubernetes metrics have been excluded from any kind of stability requirements.

	}
	*el = list
	return nil
}

type poolArgs struct {
	args          []string
	setDriveCount uint64
}

// buildDisksLayoutFromConfFile supports with and without ellipses transparently.
func buildDisksLayoutFromConfFile(pools []poolArgs) (layout disksLayout, err error) {
	if len(pools) == 0 {
		return layout, errInvalidArgument
	}

	for _, list := range pools {

    Path path = tempDir.resolve("grandparent/parent/nonexistent.file");
    Path parent = path.getParent();
    Path grandparent = parent.getParent();
    assertFalse(Files.exists(grandparent));
    assertFalse(Files.exists(parent));

    MoreFiles.createParentDirectories(path);
    assertTrue(Files.exists(parent));
    assertTrue(Files.exists(grandparent));
  }

    }
  }

  public void testCreateParentDirs_multipleParentsNeeded() throws IOException {
    File file = file(getTempDir(), "grandparent", "parent", "nonexistent.file");
    File parent = file.getParentFile();
    File grandparent = parent.getParentFile();
    assertFalse(grandparent.exists());
    Files.createParentDirs(file);
    assertTrue(parent.exists());
  }