public String getAlias() {
        return alias;
    }
Gets the alias to use when referring to the Symbol.

<p>The value of {@code getSymbol().getName()} is returned if no
alias was explicitly configured on the reference.

<p>An alias is used in some programming languages to change the
way a symbol is referenced in a source file. Aliases are often used
for de-conflicting symbols.

@return Returns the alias.
smithy-codegen-core/src/main/java/software/amazon/smithy/codegen/core/SymbolReference.java