no identifier may be declared in both the file and package block.
</p>

<p>
The <a href="#Blank_identifier">blank identifier</a> may be used like any other identifier
in a declaration, but it does not introduce a binding and thus is not declared.
In the package block, the identifier <code>init</code> may only be used for
<a href="#Package_initialization"><code>init</code> function</a> declarations,

          <version>4.0.0+</version>
          <required>true</required>
          <identifier>true</identifier>
          <description>
            A unique identifier for a repository. This is used to match the repository
            to configuration in the {@code settings.xml} file, for example. Furthermore, the identifier is
            used during POM inheritance and profile injection to detect repositories that should be merged.

    public static final String LABELS_CITY = "{labels.city}";

    /** The key of the message: Teletex Terminal Identifier */
    public static final String LABELS_user_teletexTerminalIdentifier = "{labels.user_teletexTerminalIdentifier}";

    /** The key of the message: Teletex Terminal Identifier */
    public static final String LABELS_TELETEX_TERMINAL_IDENTIFIER = "{labels.teletexTerminalIdentifier}";

                * `name`: (`str`) **REQUIRED** (if a `license_info` is set). The
                    license name used for the API.
                * `identifier`: (`str`) An [SPDX](https://spdx.dev/) license expression
                    for the API. The `identifier` field is mutually exclusive of the `url`
                    field. Available since OpenAPI 3.1.0, FastAPI 0.99.0.

ector","sel","preferredDoc","pushNative","Expr","outermostContext","sortInput","hasDuplicate","documentIsHTML","rbuggyQSA","dirruns","done","classCache","createCache","tokenCache","compilerCache","nonnativeSelectorCache","sortOrder","booleans","identifier","attributes","pseudos","rwhitespace","rcomma","rleadingCombinator","rdescend","rpseudo","ridentifier","matchExpr","ID","CLASS","TAG","ATTR","PSEUDO","CHILD","bool","needsContext","rinputs","rheader","rquickExpr","rsibling","runescape","funesca...

ector","sel","preferredDoc","pushNative","Expr","outermostContext","sortInput","hasDuplicate","documentIsHTML","rbuggyQSA","dirruns","done","classCache","createCache","tokenCache","compilerCache","nonnativeSelectorCache","sortOrder","booleans","identifier","attributes","pseudos","rwhitespace","rcomma","rleadingCombinator","rdescend","rpseudo","ridentifier","matchExpr","ID","CLASS","TAG","ATTR","PSEUDO","CHILD","bool","needsContext","rinputs","rheader","rquickExpr","rsibling","runescape","funesca...