Function require

Example: Import Template-GLib or ask the user to install packages

/** @import TemplateMod from '@girs/template-1.0' */

try {
    const {Template} = /** @type {{Template: TemplateMod}} */ (require({Template: '1.0'}));

    const t = Template.Template.new(null);
    t.parse_string('2 + 2 = {{ 2 + 2 }}');
    print(t.expand_string(null));
} catch (ex) {
    if (!(ex instanceof MissingDependencies))
        throw ex;

    if (ex.packages.size > 0)
        printerr(`Please install the packages: ${[...ex.packages].join(', ')}`);

    if (ex.files.size > 0)
        printerr(`Please install packages that contain the files: ${[...ex.files].join(', ')}`);
}
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