class FilterParams(BaseModel):
    limit: int = Field(100, gt=0, le=100)
    offset: int = Field(0, ge=0)
    order_by: Literal["created_at", "updated_at"] = "created_at"
    tags: list[str] = []


@app.get("/items/")
async def read_items(filter_query: FilterParams = Query()):

) : ExchangeCodec {
  private var state = STATE_IDLE
  private val headersReader = HeadersReader(source)

  private val Response.isChunked: Boolean
    get() = "chunked".equals(header("Transfer-Encoding"), ignoreCase = true)

  private val Request.isChunked: Boolean
    get() = "chunked".equals(header("Transfer-Encoding"), ignoreCase = true)

  /**

### Try Out the Client Code

Now you can import and use the client code, it could look like this, notice that you get autocompletion for the methods:

<img src="/img/tutorial/generate-clients/image02.png">

You will also get autocompletion for the payload to send:

<img src="/img/tutorial/generate-clients/image03.png">

/// tip

func (rs *resetState) run(_ io.Writer) error {
	const (
		defaultOutputLevel     = "info"
		defaultStackTraceLevel = "none"
	)
	allScopes, err := rs.client.GetScopes()
	if err != nil {
		return fmt.Errorf("could not get all scopes: %v", err)
	}
	var defaultScopes []*ScopeInfo
	for _, scope := range allScopes {
		defaultScopes = append(defaultScopes, &ScopeInfo{
			Name:            scope.Name,
			OutputLevel:     defaultOutputLevel,

        for (int idx = 0; idx < synonyms.size(); idx++) {
            final MyToken synonym = synonyms.get(idx);
            tokenizePartialBlock(nextStart, synonym.startOffset, afterSynonymProduced);

            // enqueue prev-synonym
            processPrevSynonym(synonym.startOffset, idx > 0 ? synonyms.get(idx - 1).endOffset : 0);

            if (expand) {
                queue.add(synonym);
            }

from typing import Union

from fastapi import FastAPI, Header

app = FastAPI()


@app.get("/items/")
async def read_items(x_token: Union[list[str], None] = Header(default=None)):

from fastapi import FastAPI

app = FastAPI()

fake_items_db = [{"item_name": "Foo"}, {"item_name": "Bar"}, {"item_name": "Baz"}]


@app.get("/items/")
async def read_item(skip: int = 0, limit: int = 10):

    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()]):

class FilterParams(BaseModel):
    limit: int = Field(100, gt=0, le=100)
    offset: int = Field(0, ge=0)
    order_by: Literal["created_at", "updated_at"] = "created_at"
    tags: List[str] = []


@app.get("/items/")
async def read_items(filter_query: FilterParams = Query()):

        extra = "forbid"

    limit: int = Field(100, gt=0, le=100)
    offset: int = Field(0, ge=0)
    order_by: Literal["created_at", "updated_at"] = "created_at"
    tags: list[str] = []


@app.get("/items/")
async def read_items(filter_query: Annotated[FilterParams, Query()]):