public final I getImportContainer() {
        return importContainer;
    }
Gets the import container associated with the writer.

<p>The {@link #toString()} method of the {@code SymbolWriter} should
be overridden so that it includes the import container's contents in
the output as appropriate.

@return Returns the import container.
smithy-codegen-core/src/main/java/software/amazon/smithy/codegen/core/SymbolWriter.java