# Istio operator code overview

## Introduction

This document covers primarily the code, with some background on how the design maps to it.
See the
[design doc](https://docs.google.com/document/d/11j9ZtYWNWnxQYnZy8ayZav1FMwTH6F6z6fkDYZ7V298/edit#heading=h.qex63c29z2to)
for a more complete design description. The operator code is divided roughly into five areas:

1. [IstioOperatorSpec API](#istiooperatorspec-api) and related infrastructure, which is expressed as a

parseInt(computedStyle[`margin${axis === 'Height' ? 'Top' : 'Left'}`]) + \n      parseInt(computedStyle[`margin${axis === 'Height' ? 'Bottom' : 'Right'}`]))\n    : 0 \n  );\n}\n\nexport default function getWindowSizes(document) {\n  const body = document.body;\n  const html = document.documentElement;\n  const computedStyle = isIE(10) && getComputedStyle(html);\n\n  return {\n    height: getSize('Height', body, html, computedStyle),\n    width: getSize('Width', body, html, computedStyle),\n  };\n}\n","/**\n...

## Get started

In this document we will explain in detail on how to configure multiple users.

### 1. Prerequisites

        assertMarked("exists");
    }
    */

    // ===================================================================================
    //                                                                            Document
    //                                                                            ========
    public void test_document() throws Exception {
        saveLastaDocMeta();
        assertTrue(true);
    }

    @Override

      "description": "feature request"
    },
    "invalid_question": {
      "name": "type:invalid question",
      "colour": "#CF2E1F",
      "description": "invalid question (not related to GORM or described in document or not enough information provided)"
    },
    "with_playground": {
      "name": "type:with reproduction steps",
      "colour": "#00ff00",
      "description": "with reproduction steps"
    },

    }

    // ===================================================================================
    //                                                                            Document
    //                                                                            ========
    /**
     * {@inheritDoc} <br>
     * Application Origin Methods:
     * <pre>

}

// HasTransition returns 'true' if lifecycle document has Transition enabled.
func (lc Lifecycle) HasTransition() bool {
	for _, rule := range lc.Rules {
		if rule.Transition.IsEnabled() {
			return true
		}
	}
	return false
}

// HasExpiry returns 'true' if lifecycle document has Expiry enabled.
func (lc Lifecycle) HasExpiry() bool {
	for _, rule := range lc.Rules {

# Body - Nested Models

With **FastAPI**, you can define, validate, document, and use arbitrarily deeply nested models (thanks to Pydantic).

## List fields

You can define an attribute to be a subtype. For example, a Python `list`:

//// tab | Python 3.10+

```Python hl_lines="12"
{!> ../../docs_src/body_nested_models/tutorial001_py310.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="14"

	flag.StringVar(&stsEndpoint, "sts-ep", "http://localhost:9000", "STS endpoint")
	flag.StringVar(&configEndpoint, "config-ep",
		"http://localhost:8080/auth/realms/minio/.well-known/openid-configuration",
		"OpenID discovery document endpoint")
	flag.StringVar(&clientID, "cid", "", "Client ID")
	flag.StringVar(&clientSec, "csec", "", "Client Secret")
	flag.StringVar(&clientScopes, "cscopes", "openid", "Client Scopes")

          .add("aString", aString)
          .add("anInt", anInt)
          .add("anEnum", anEnum)
          .toString();
    }
  }

  /** Validates that the Comparator equivalent we document is correct. */
  @J2ktIncompatible // TODO b/315311435 - J2kt cannot emulate Comparator<C>.<U>thenComparing()
  public void testComparatorEquivalent() {
    Comparator<Foo> comparatorUsingComparisonChain =
        (a, b) ->