<div class="termy">

```console
$ pip install uvicorn[standard]

---> 100%
```

</div>

## Esempio

### Crea un file

* Crea un file `main.py` con:

```Python
from fastapi import FastAPI
from typing import Optional

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}

        // We only ever register ArrayReferences with the queue so this is always safe.
        ArrayReference<? extends L> arrayRef = (ArrayReference<? extends L>) ref;
        // Try to clear out the array slot, n.b. if we fail that is fine, in either case the
        // arrayRef will be out of the array after this step.
        locks.compareAndSet(arrayRef.index, arrayRef, null);
      }
    }

			adminRouter.Methods(http.MethodDelete).Path(adminVersion+"/clear-config-history-kv").HandlerFunc(adminMiddleware(adminAPI.ClearConfigHistoryKVHandler)).Queries("restoreId", "{restoreId:.*}")

				err = msgp.WrapError(err, "Compacted")
				return
			}
		default:
			err = dc.Skip()
			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	// Clear omitted fields.
	if (zb0001Mask & 0x1) == 0 {
		z.AllTierStats = nil
	}

	return
}

// EncodeMsg implements msgp.Encodable
func (z *dataUsageEntry) EncodeMsg(en *msgp.Writer) (err error) {

### Understand the question { #understand-the-question }

* Check if you can understand what is the **purpose** and use case of the person asking.

* Then check if the question (the vast majority are questions) is **clear**.

---

Ahora que conocemos la diferencia entre los términos **proceso** y **programa**, sigamos hablando sobre implementaciones.

## Ejecución al Iniciar

								changed = true
								version.ObjectV2.PartIndices[i] = nil
							}
							clearField = clearField && len(version.ObjectV2.PartIndices[i]) == 0
						}
					}
					if changed {
						// All empty, clear.
						if clearField {
							version.ObjectV2.PartIndices = nil
						}

						// Reindex since it was changed.
						meta, err := version.MarshalMsg(make([]byte, 0, len(ver.meta)+10))
						if err == nil {

				topEntries[i] = entry
				continue
			}
			// We got different entries
			if entry.name > current.name {
				continue
			}
			// We got a new, better current.
			// Clear existing entries.
			for i := range topEntries[:i] {
				topEntries[i] = metaCacheEntry{}
			}
			agree = 1
			current = entry
			topEntries[i] = entry
		}

}
func (sr sparseFileReader) physicalRemaining() int64 {
	return sr.fr.physicalRemaining()
}

type zeroReader struct{}

func (zeroReader) Read(b []byte) (int, error) {
	clear(b)
	return len(b), nil
}

// mustReadFull is like io.ReadFull except it returns
// io.ErrUnexpectedEOF when io.EOF is hit before len(b) bytes are read.
func mustReadFull(r io.Reader, b []byte) (int, error) {

				t.Errorf("off %d, size %d = %v, %v (%q); want %q", off, size, n, err, got, want)
			}
		}
	}

}

type zeros struct{}

func (zeros) Read(p []byte) (int, error) {
	clear(p)
	return len(p), nil