//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console
// Podrías crear una env var MY_NAME con
$ export MY_NAME="Wade Wilson"

// Luego podrías usarla con otros programas, como
$ echo "Hello $MY_NAME"

Hello Wade Wilson
```

</div>

////

//// tab | Windows PowerShell

<div class="termy">

```console
// Crea una env var MY_NAME

from fastapi import FastAPI
from fastapi.responses import FileResponse
from pydantic import BaseModel


class Item(BaseModel):
    id: str
    value: str


app = FastAPI()


@app.get(
    "/items/{item_id}",
    response_model=Item,
    responses={
        200: {
            "content": {"image/png": {}},
            "description": "Return the JSON item or an image.",
        }
    },
)

from fastapi import Depends, FastAPI

app = FastAPI()


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


class CommonQueryParams:
    def __init__(self, q: str | None = None, skip: int = 0, limit: int = 100):
        self.q = q
        self.skip = skip
        self.limit = limit


@app.get("/items/")
async def read_items(commons=Depends(CommonQueryParams)):
    response = {}
    if commons.q:

from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None
    tags: set[str] = set()


@app.post(
    "/items/",
    response_model=Item,
    summary="Create an item",

import okhttp3.internal.skipAll
import okio.Buffer
import okio.ForwardingTimeout
import okio.Sink
import okio.Source
import okio.Timeout

/**
 * A socket connection that can be used to send HTTP/1.1 messages. This class strictly enforces the
 * following lifecycle:
 *
 *  1. [Send request headers][writeRequest].
 *  2. Open a sink to write the request body. Either [known][newKnownLengthSink] or
 *     [chunked][newChunkedSink].

    assertThrows(IllegalArgumentException.class, () -> Ints.tryParse("0", Character.MAX_RADIX + 1));
  }

  public void testTryParse_radixTooSmall() {
    assertThrows(IllegalArgumentException.class, () -> Ints.tryParse("0", Character.MIN_RADIX - 1));
  }

  public void testTryParse_withNullGwt() {
    assertThat(Ints.tryParse("null")).isNull();
    assertThrows(NullPointerException.class, () -> Ints.tryParse(null));
  }

import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.Configuration;

@ExtendWith(MockitoExtension.class)
class NodeStatusRequestTest {

    @Mock
    private Configuration mockConfig;

    @Mock
    private Name mockName;

    private NodeStatusRequest nodeStatusRequest;

    @BeforeEach
    void setUp() {

        assertEquals(1, od.getChunksWritten());
        assertEquals(2, od.getChunkBytesWritten());
        assertEquals(3, od.getTotalBytesWritten());

        // Type mismatch should raise SmbException
        assertThrows(SmbException.class, () -> resp.getOutputData(SrvRequestResumeKeyResponse.class));
    }

    @Test

    @Nonnull
    List<Node> getNodes();

    /**
     * Returns the file paths of all dependencies, regardless of which tool option those paths should be placed on.
     * The returned list may contain a mix of Java class path, Java module path, and other types of path elements.
     * This collection has the same content as {@code getDependencies.values()} except that it does not contain
     * null elements.
     *

 * <p>
 * This class provides specialized source implementations for different use cases:
 * <ul>
 *   <li>Path sources - simple access to file content</li>
 *   <li>Build sources - POM files being actively built by Maven</li>
 *   <li>Resolved sources - POMs resolved from repositories</li>
 * </ul>
 *
 * @since 4.0.0
 */
@Experimental
public final class Sources {

    private Sources() {}