from fastapi import FastAPI, Header
from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    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: CommonHeaders = Header()):

# Strict Content-Type Checking { #strict-content-type-checking }

By default, **FastAPI** uses strict `Content-Type` header checking for JSON request bodies, this means that JSON requests **must** include a valid `Content-Type` header (e.g. `application/json`) in order for the body to be parsed as JSON.

## CSRF Risk { #csrf-risk }

This default behavior provides protection against a class of **Cross-Site Request Forgery (CSRF)** attacks in a very specific scenario.

	// Reference:
	//	http://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_92_13_06
	FormatUSTAR

	// FormatPAX represents the PAX header format defined in POSIX.1-2001.
	//
	// PAX extends USTAR by writing a special file with Typeflag TypeXHeader
	// preceding the original header. This file contains a set of key-value
	// records, which are used to overcome USTAR's shortcomings, in addition to

            continue
        current_lang_links = lang_links[lang]
        current_lang_links.sort(key=lambda x: x.preview_link)
        links.extend(current_lang_links)

    header = "## 📝 Docs preview"
    message = header
    message += f"\n\nLast commit {settings.commit_sha} at: {deploy_url}"

    if links:
        message += "\n\n### Modified Pages\n\n"
        for link in links:

      // Parse each header.
      for (i in 0 until responseHeaders.size) {
        if (!responseHeaders.name(i).equals(HEADER_WEB_SOCKET_EXTENSION, ignoreCase = true)) {
          continue // Not a header we're interested in.
        }
        val header = responseHeaders.value(i)

        // Parse each extension.
        var pos = 0
        while (pos < header.length) {

            /*
             * A word about communicating header info to andx smbs
             *
             * This is where we recursively invoke the provided andx smb
             * object to write it's parameter words and bytes to our outgoing
             * array. Incedentally when these andx smbs are created they are not
             * necessarily populated with header data because they're not writing

        .addInterceptor { chain ->
          assertThat(chain.request().header("Accept-Encoding")).isNull()
          Response
            .Builder()
            .request(chain.request())
            .protocol(Protocol.HTTP_1_1)
            .code(200)
            .message("OK")
            .body("Hello".toResponseBody())
            .header("Content-Encoding", "piedpiper")
            .build()
        }.build()

                                <%-- Card Header --%>
                            <div class="card-header">
                                <jsp:include page="/WEB-INF/view/common/admin/crud/header.jsp"></jsp:include>
                            </div>
                                <%-- Card Body --%>

		2: {
			versions: []xlMetaV2ShallowVersion{
				{header: xlMetaV2VersionHeader{
					VersionID: [16]byte{2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
					ModTime:   baseTime.Add(60 * time.Minute).UnixNano(),
					Signature: [4]byte{2, 1, 1, 1},
					Type:      ObjectType,
					Flags:     0,
				}},
				{header: xlMetaV2VersionHeader{

			}
			type version struct {
				Idx      int
				Header   json.RawMessage
				Metadata json.RawMessage
			}
			versions := make([]version, nVers)
			e = decodeVersions(v, nVers, func(idx int, hdr, meta []byte) error {
				var header xlMetaV2VersionHeaderV2
				if _, e := header.UnmarshalMsg(hdr); e != nil {
					return e
				}
				b, e := header.MarshalJSON()
				if e != nil {
					return e
				}