## Descripción avanzada desde el docstring

Puedes limitar las líneas usadas del docstring de una *función de path operation* para OpenAPI.

Añadir un `\f` (un carácter de separación de página escapado) hace que **FastAPI** trunque la salida usada para OpenAPI en este punto.

No aparecerá en la documentación, pero otras herramientas (como Sphinx) podrán usar el resto.

{* ../../docs_src/query_params/tutorial001.py hl[9] *}

The query is the set of key-value pairs that go after the `?` in a URL, separated by `&` characters.

For example, in the URL:

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

...the query parameters are:

* `skip`: with a value of `0`
* `limit`: with a value of `10`

        value = "${var1${var2}}"; // The ${var2} part gets replaced first
        assertEquals("${var1value2}", ResourceUtil.resolve(value));

        // Test with special characters in replacement
        System.setProperty("special", "value$with\\backslash");
        value = "${special}";
        assertEquals("value$with\\backslash", ResourceUtil.resolve(value));

        private final int type;
        private final String scope;

        TestNetbiosName(String name, int type, String scope) {
            // Ensure names are uppercase and limited to 15 characters
            this.name = name != null && name.length() > 15 ? name.substring(0, 15).toUpperCase() : (name != null ? name.toUpperCase() : "");
            this.type = type;
            this.scope = scope;
        }

## 🚮 🌅 🔬

👆 💪 🚮 🔢 `min_length`:

{* ../../docs_src/query_params_str_validations/tutorial003.py hl[10] *}

## 🚮 🥔 🧬

👆 💪 🔬 <abbr title="A regular expression, regex or regexp is a sequence of characters that define a search pattern for strings.">🥔 🧬</abbr> 👈 🔢 🔜 🏏:

{* ../../docs_src/query_params_str_validations/tutorial004.py hl[11] *}

👉 🎯 🥔 🧬 ✅ 👈 📨 🔢 💲:

* `^`: ▶️ ⏮️ 📄 🦹, 🚫 ✔️ 🦹 ⏭.

        assertTrue(item.isUpdated());
        assertFalse(item.isDeleted());
        assertEquals("third", item.toLineString());
    }

    public void test_specialCharacters() {
        // Test with special characters in input
        String specialInput = "test@#$%^&*()_+-=[]{}|;':\",./<>?";
        ProtwordsItem item = new ProtwordsItem(1, specialInput);

        assertEquals(specialInput, item.getInput());

        public short length;
        /**
         * The maximum allocated length of the string in bytes.
         */
        public short maximum_length;
        /**
         * The buffer containing the Unicode characters.
         */
        public short[] buffer;

        @Override
        public void encode(NdrBuffer _dst) throws NdrException {
            _dst.align(4);
            _dst.enc_ndr_short(length);

                }
            });
            return sessionIdList;
        });
    }

    /**
     * Generates a hashed ID from the provided URL ID string.
     * Encodes special characters using URL encoding or Base64 encoding as needed,
     * then applies a message digest algorithm to create a unique hash.
     *
     * @param urlId the URL ID string to generate a hash for

        assertEquals("test", getQuery("test", new String[0], Collections.emptyMap(), Collections.emptyMap(), true));

        // Test specific characters that should be escaped
        assertEquals("test\\/query", getQuery("test/query", new String[0], Collections.emptyMap(), Collections.emptyMap(), true));

* `https://www.googleapis.com/auth/drive` is used by Google.

/// info

In OAuth2 a "scope" is just a string that declares a specific permission required.

It doesn't matter if it has other characters like `:` or if it is a URL.

Those details are implementation specific.

For OAuth2 they are just strings.

///

## Code to get the `username` and `password` { #code-to-get-the-username-and-password }