Let's start with a simple example:

{* ../../docs_src/python_types/tutorial001_py310.py *}

Calling this program outputs:

```
John Doe
```

The function does the following:

* Takes a `first_name` and `last_name`.
* Converts the first letter of each one to upper case with `title()`.
* <dfn title="Puts them together, as one. With the contents of one after the other.">Concatenates</dfn> them with a space in the middle.

2.  Pull requests are great for small fixes for bugs, documentation, etc.
3.  Pull requests are not merged directly into the master branch.
4.  Code contributions require signing a Google CLA.

API changes
-----------

We make changes to Guava's public [APIs][], including adding new APIs, very
carefully. Because of this, if you're interested in seeing a new feature in
Guava, the best approach is to create an [issue][] (or comment on an existing

 * </ul>
 *
 * To force selection of our fallback strategies we load {@link AggregateFutureState} (and all of
 * {@code com.google.common.util.concurrent}) in degenerate class loaders which make certain
 * platform classes unavailable. Then we construct a test suite so we can run the normal FuturesTest
 * test methods in these degenerate classloaders.
 */

@NullUnmarked
@GwtIncompatible
@J2ktIncompatible

When you declare a default value for non-path parameters (for now, we have only seen query parameters), then it is not required.

If you don't want to add a specific value but just make it optional, set the default as `None`.

But when you want to make a query parameter required, you can just not declare any default value:

{* ../../docs_src/query_params/tutorial005_py310.py hl[6:7] *}

			return
		}
		deadlineconn := New(tcpConn)
		deadlineconn.WithReadDeadline(time.Second)
		deadlineconn.WithWriteDeadline(time.Second)
		defer deadlineconn.Close()

		// Read a line
		b := make([]byte, 12)
		_, terr = deadlineconn.Read(b)
		if terr != nil {
			t.Errorf("failed to read from client. %v", terr)
			return
		}
		received := string(b)
		if received != "message one\n" {

// newNSLock - return a new name space lock map.
func newNSLock(isDistErasure bool) *nsLockMap {
	nsMutex := nsLockMap{
		isDistErasure: isDistErasure,
	}
	if isDistErasure {
		return &nsMutex
	}
	nsMutex.lockMap = make(map[string]*nsLock)
	return &nsMutex
}

// nsLock - provides primitives for locking critical namespace regions.
type nsLock struct {
	ref int32
	*lsync.LRWMutex
}

// By default at least 128 entries in single getdents call (1MiB buffer)
var (
	direntPool = bpool.Pool[*[]byte]{
		New: func() *[]byte {
			buf := make([]byte, blockSize*128)
			return &buf
		},
	}

	direntNamePool = bpool.Pool[*[]byte]{
		New: func() *[]byte {
			buf := make([]byte, blockSize)
			return &buf
		},
	}
)

// unexpectedFileMode is a sentinel (and bogus) os.FileMode

				time.Sleep(wait)
			}
		}
		i++
		wk.Take()
		go func(toExpire []expireObjInfo) {
			defer wk.Give()

			toExpireAll := make([]expireObjInfo, 0, len(toExpire))
			toDel := make([]ObjectToDelete, 0, len(toExpire))
			oiCache := newObjInfoCache()
			for _, exp := range toExpire {
				if exp.ExpireAll {
					toExpireAll = append(toExpireAll, exp)
					continue
				}

	MOVL 2147483648(AX), AX  // 8b8000000080
	MOVL -2147483648(AX), AX // 8b8000000080
	ADDL 2147483648(AX), AX  // 038000000080
	ADDL -2147483648(AX), AX // 038000000080
	// Make sure MOV CR/DR continues to work after changing its movtabs.
	MOVL CR0, AX // 0f20c0
	MOVL CR0, DX // 0f20c2
	MOVL CR4, DI // 0f20e7
	MOVL AX, CR0 // 0f22c0
	MOVL DX, CR0 // 0f22c2
	MOVL DI, CR4 // 0f22e7

  - [alpha] The `kubeadm` tool makes it much easier to bootstrap Kubernetes. ([docs](http://kubernetes.io/docs/getting-started-guides/kubeadm/)) ([kubernetes/features#11](https://github.com/kubernetes/enhancements/issues/11))
- **Federation**