## Default response class { #default-response-class }

When creating a **FastAPI** class instance or an `APIRouter` you can specify which response class to use by default.

The parameter that defines this is `default_response_class`.

In the example below, **FastAPI** will use `HTMLResponse` by default, in all *path operations*, instead of JSON.

{* ../../docs_src/custom_response/tutorial010_py310.py hl[2,4] *}

Shared scheme

```
org.gradle[.<qualifier>].<feature-name>.<detail>
```

The optional qualifier defines the secondary aspects, if any.

For better ergonomics on the CLI, some properties can have supplementary command-line build option(s).
The name of the feature in the build option SHOULD be the same as in the property name.

        }

        return maximals.getFirst();
    }

    /**
     * Determines which method signature (represented by a class array) is more
     * specific. This defines a partial ordering on the method signatures.
     *
     * @param c1 first signature to compare
     * @param c2 second signature to compare
     * @return MORE_SPECIFIC if c1 is more specific than c2, LESS_SPECIFIC if

import static org.elasticsearch.gradle.internal.vagrant.VagrantMachine.convertLinuxPath;
import static org.elasticsearch.gradle.internal.vagrant.VagrantMachine.convertWindowsPath;

/**
 * This class defines gradle tasks for testing our various distribution artifacts.
 */
public class DistroTestPlugin implements Plugin<Project> {
    private static final String SYSTEM_JDK_VERSION = "11.0.2+9";

                    .get());
            options.addOption(Option.builder()
                    .longOpt(COLOR)
                    .hasArg()
                    .optionalArg(true)
                    .desc("Defines the color mode of the output. Supported are 'auto', 'always', 'never'.")
                    .get());
            options.addOption(Option.builder(OFFLINE)
                    .longOpt("offline")

///

## OAuth2 scopes and OpenAPI { #oauth2-scopes-and-openapi }

The OAuth2 specification defines "scopes" as a list of strings separated by spaces.

The content of each of these strings can have any format, but should not contain spaces.

These scopes represent "permissions".

In OpenAPI (e.g. the API docs), you can define "security schemes".

When one of these security schemes uses OAuth2, you can also declare and use scopes.

* `PUT`: to update data.
* `DELETE`: to delete data.

So, in OpenAPI, each of the HTTP methods is called an "operation".

We are going to call them "**operations**" too.

#### Define a *path operation decorator* { #define-a-path-operation-decorator }

{* ../../docs_src/first_steps/tutorial001_py310.py hl[6] *}

The `@app.get("/")` tells **FastAPI** that the function right below is in charge of handling requests that go to:

package jstream

import (
	"bytes"
	"encoding/json"
	"io"
	"strconv"
	"sync/atomic"
	"unicode/utf16"
)

// ValueType - defines the type of each JSON value
type ValueType int

// Different types of JSON value
const (
	Unknown ValueType = iota
	Null
	String
	Number
	Boolean
	Array
	Object
)

// MetaValue wraps a decoded interface value with the document

    checkState(boxedBoolean.booleanValue(), "", s);
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNullPointers() {
    /*
     * Don't bother testing: Preconditions defines a bunch of methods that accept a template (or
     * even entire message) that simultaneously:
     *
     * - _shouldn't_ be null, so we don't annotate it with @Nullable
     *

    checkState(boxedBoolean.booleanValue(), "", s);
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNullPointers() {
    /*
     * Don't bother testing: Preconditions defines a bunch of methods that accept a template (or
     * even entire message) that simultaneously:
     *
     * - _shouldn't_ be null, so we don't annotate it with @Nullable
     *