/// info

Notice that we are only declaring one dependency in the *path operation function*, the `query_or_cookie_extractor`.

But **FastAPI** will know that it has to solve `query_extractor` first, to pass the results of that to `query_or_cookie_extractor` while calling it.

///

```mermaid
graph TB

query_extractor(["query_extractor"])
query_or_cookie_extractor(["query_or_cookie_extractor"])

          std::unique_ptr<TensorSliceReader::VarToDataTypeMap>>
CheckpointReader::BuildV2VarMaps() {
  CHECK(v2_reader_ != nullptr);
  CHECK(v2_reader_->status().ok());

  // First pass: filters out the entries of the slices.
  std::unordered_set<string> filtered_keys;
  BundleEntryProto entry;
  v2_reader_->Seek(kHeaderEntryKey);
  for (v2_reader_->Next(); v2_reader_->Valid(); v2_reader_->Next()) {

from typing import Annotated

from fastapi import Depends, FastAPI, HTTPException

app = FastAPI()


class InternalError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except InternalError:
        print("We don't swallow the internal error here, we raise again 😎")
        raise


@app.get("/items/{item_id}")
def get_item(item_id: str, username: Annotated[str, Depends(get_username)]):

# as other tools that use them depend on that
# Ref: https://github.com/fastapi/fastapi/pull/14320

from fastapi import Depends, Security


def dep():
    pass


def test_depends_hashable():
    dep()  # just for coverage
    d1 = Depends(dep)
    d2 = Depends(dep)
    d3 = Depends(dep, scope="function")
    d4 = Depends(dep, scope="function")

			}
		})
	}
}

// TestSipHashMod - test sip hash.
func TestSipHashMod(t *testing.T) {
	testCases := []struct {
		objectName string
		sipHash    int
	}{
		// cases which should pass the test.
		// passing in valid object name.
		{"object", 37},
		{"The Shining Script <v1>.pdf", 38},
		{"Cost Benefit Analysis (2009-2010).pptx", 59},
		{"117Gn8rfHL2ACARPAhaFd0AGzic9pUbIA/5OCn5A", 35},
		{"SHØRT", 49},

   - Keep PRs focused—one feature or fix. Split large changes into multiple PRs.

3. **Testing**:
   - Include unit tests for new functionality or bug fixes.
   - Ensure existing tests pass (`make test`).
   - Document testing steps in the PR summary if manual testing was performed.

4. **Before Submitting**:
   - Run `make verify` to check formatting, linting, and tests.

    "sync_bg": "not set",
}

errors = []


async def get_state():
    return state


class AsyncDependencyError(Exception):
    pass


class SyncDependencyError(Exception):
    pass


class OtherDependencyError(Exception):
    pass


async def asyncgen_state(state: dict[str, str] = Depends(get_state)):
    state["/async"] = "asyncgen started"
    yield state["/async"]

) : BaseGradleBuildType(init = {
        id("${model.projectId}_GitHubMergeQueueCheckPass")
        uuid = "${DslContext.uuidPrefix}_${model.projectId}_GitHubMergeQueueCheckPass"
        name = "GitHub Merge Queue Check Pass"
        type = Type.COMPOSITE

        vcs {
            root(AbsoluteId(VersionedSettingsBranch.fromDslContext().vcsRootId()))
            checkoutMode = CheckoutMode.ON_AGENT
        }

        features {

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[12] *}

In this case, this `__call__` is what **FastAPI** will use to check for additional parameters and sub-dependencies, and this is what will be called to pass a value to the parameter in your *path operation function* later.

## Parameterize the instance { #parameterize-the-instance }

# Despliegue { #deployment }

Desplegar una aplicación **FastAPI** es relativamente fácil.

## Qué Significa Despliegue { #what-does-deployment-mean }

**Desplegar** una aplicación significa realizar los pasos necesarios para hacerla **disponible para los usuarios**.