func (w *Walker) ImportFrom(fromPath, fromDir string, mode types.ImportMode) (*types.Package, error) {
	pkg, err := w.importFrom(fromPath, fromDir, mode)
	if err != nil {
		return nil, err
	}
	return pkg.Package, nil
}

func (w *Walker) import_(name string) (*apiPackage, error) {
	return w.importFrom(name, "", 0)
}

     *
     * @param path the path to the file
     * @return a new Source instance
     * @throws NullPointerException if path is null
     */
    @Nonnull
    public static Source fromPath(@Nonnull Path path) {
        return new PathSource(requireNonNull(path, "path"));
    }

    /**
     * Creates a new build source for the specified path.

    @Nonnull
    static SettingsBuilderRequest build(
            @Nonnull ProtoSession session, @Nonnull Path installationSettingsPath, @Nonnull Path userSettingsPath) {
        return build(session, Sources.fromPath(installationSettingsPath), null, Sources.fromPath(userSettingsPath));
    }

    @Nonnull
    static SettingsBuilderRequest build(
            @Nonnull ProtoSession session,
            @Nullable Source installationSettingsSource,

        Source source = Sources.fromPath(testFile);
        try (InputStream inputStream = source.openStream()) {
            String readContent = new String(inputStream.readAllBytes());
            assertEquals(content, readContent);
        }
    }

    @Test
    void testNullHandling() {
        assertThrows(NullPointerException.class, () -> Sources.fromPath(null));

                                ? Sources.fromPath(installationToolchainsFile)
                                : null)
                .userToolchainsSource(
                        userToolchainsPath != null && Files.exists(userToolchainsPath)
                                ? Sources.fromPath(userToolchainsPath)
                                : null)
                .build();
    }

                                ? Sources.fromPath(installationSettingsFile)
                                : null)
                .projectSettingsSource(
                        projectSettingsFile != null && Files.exists(projectSettingsFile)
                                ? Sources.fromPath(projectSettingsFile)
                                : null)
                .userSettingsSource(

                                ? Sources.fromPath(installationToolchainsFile)
                                : null)
                .userToolchainsSource(
                        userToolchainsFile != null && Files.isRegularFile(userToolchainsFile)
                                ? Sources.fromPath(userToolchainsFile)
                                : null)
                .build();

Deven Desai, Diego Caballero, Duncan Dean, Duncan Riach, Dwight J Lyle, Eamon
Ito-Fisher, eashtian3, EFanZh, ejot, Elroy Ashtian Jr, Eric Schweitz, Fangjun
Kuang, Fei Hu, fo40225, formath, Fred Reiss, Frederic Bastien, Fredrik Knutsson,
G. Hussain Chinoy, Gabriel, gehring, George Grzegorz Pawelczak, Gianluca
Varisco, Gleb Popov, Greg Peatfield, Guillaume Klein, Gurpreet Singh, Gustavo