* `skip=20`: because you set it in the URL
* `limit=10`: because that was the default value

## Optional parameters { #optional-parameters }

The same way, you can declare optional query parameters, by setting their default to `None`:

{* ../../docs_src/query_params/tutorial002_py310.py hl[7] *}

In this case, the function parameter `q` will be optional, and will be `None` by default.

/// check

		ttl = defaultTTL
	}

	onEvicted := func(k string, v *Stmt) {
		if v != nil {
			go v.Close()
		}
	}
	return &lruStore{lru: lru.NewLRU[string, *Stmt](size, onEvicted, ttl)}
}

type lruStore struct {
	lru *lru.LRU[string, *Stmt]
}

func (s *lruStore) Keys() []string {
	return s.lru.Keys()
}

func (s *lruStore) Get(key string) (*Stmt, bool) {
	stmt, ok := s.lru.Get(key)

     * @param val The string to be interpolated.
     * @param callback The function to resolve variable values.
     * @return The interpolated string, or null if the input was null.
     */
    @Nullable
    default String interpolate(@Nullable String val, @Nullable UnaryOperator<String> callback) {
        return interpolate(val, callback, false);
    }

    /**
     * Interpolates a single string value using the provided callback function.

    // then FRQ does not bother to load Finalizer.class through a separate ClassLoader. That happens
    // in our test environment, which foils the purpose of this test, so we disable the logic for
    // our test by setting a static field. We are changing the field in the parallel version of FRQ
    // and each test creates its own one of those, so there is no test interference here.
    Class<?> sepFrqSystemLoaderC =

MinIO to get temporary credentials for MinIO API operations. MinIO STS API uses [JSON Web Key Set Endpoint](https://docs.wso2.com/display/IS541/JSON+Web+Key+Set+Endpoint) to validate if JWT is valid and is properly signed.

**We recommend setting `policy` as a custom claim for the JWT service provider follow [here](https://docs.wso2.com/display/IS550/Configuring+Claims+for+a+Service+Provider) and [here](https://docs.wso2.com/display/IS550/Handling+Custom+Claims+with+the+JWT+Bearer+Grant+Type)...

MINIO_IDENTITY_OPENID_ROLE_POLICY           (string)    Set the IAM access policies applicable to this client application and IDP e.g. "app-bucket-write,app-bucket-list"
MINIO_IDENTITY_OPENID_CLAIM_NAME            (string)    JWT canned policy claim name (default: 'policy')

    URL resource = getClass().getResource("testdata/alice_in_wonderland.txt");
    LineProcessor<List<String>> collectAndLowercaseAndTrim =
        new LineProcessor<List<String>>() {
          final List<String> collector = new ArrayList<>();

          @Override
          public boolean processLine(String line) {
            collector.add(whitespace().trimFrom(line));
            return true;
          }

MINIO_IDENTITY_LDAP_SRV_RECORD_NAME         (string)    DNS SRV record name for LDAP service, if given, must be one of "ldap", "ldaps" or "on"
MINIO_IDENTITY_LDAP_LOOKUP_BIND_DN          (string)    DN for LDAP read-only service account used to perform DN and group lookups
MINIO_IDENTITY_LDAP_LOOKUP_BIND_PASSWORD    (string)    Password for LDAP read-only service account used to perform DN and group lookups

This is not a limitation of **FastAPI**, it's part of the HTTP protocol.

///

## Optional File Upload { #optional-file-upload }

You can make a file optional by using standard type annotations and setting a default value of `None`:

{* ../../docs_src/request_files/tutorial001_02_an_py310.py hl[9,17] *}

## `UploadFile` with Additional Metadata { #uploadfile-with-additional-metadata }

# NOTE: This Dockerfile is no longer in use.
# It is kept just in case, but it's recommended to use the 2022 version,
# and that is what internal CI uses as well.

# This Dockerfile creates an image that has:
# - the correct MTU setting for networking from inside the container to work.
# - Visual Studio 2022 Build Tools
# - MSVC 14.39
# - LLVM/Clang 18.1.4
# - MSYS2 + curl, git, patch, vim, unzip, zip
# - Python 3.12.3
# - Bazelisk 1.19.0