func MyFunction2(arg1, arg2 int, arg3 string) (int64, *C.char) {...}

They will be available in the C code as:

	extern GoInt64 MyFunction(int arg1, int arg2, GoString arg3);
	extern struct MyFunction2_return MyFunction2(int arg1, int arg2, GoString arg3);

found in the _cgo_export.h generated header, after any preambles
copied from the cgo input files. Functions with multiple

        assertContains(range, "2");
        assertEquals(range, parseValid(range.toString()));
    }

    @Test
    void testLowerBoundInclusiveUpperBoundExclusive() {
        VersionRange range = parseValid("[1.2.3.4.5,1.2.3.4.6)");
        assertContains(range, "1.2.3.4.5");
        assertNotContains(range, "1.2.3.4.6");
        assertEquals(range, parseValid(range.toString()));
    }

    @Test

  public void testToString_minimal() {
    assertNotNull("toString() should not return null", getMap().toString());
  }

  @CollectionSize.Require(ZERO)
  @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING)
  public void testToString_size0() {
    assertEquals("emptyMap.toString should return {}", "{}", getMap().toString());
  }

  @CollectionSize.Require(ONE)

        PrintWriter pWriter = new PrintWriter(sWriter);

        error.printStackTrace(pWriter);

        System.err.println(
                "[error] " + content.toString() + System.lineSeparator() + System.lineSeparator() + sWriter.toString());
    }

    /**
     * @see org.apache.maven.plugin.logging.Log#error(java.lang.Throwable)
     */
    public void error(Throwable error) {

                if (queryBuilder instanceof final TermsQueryBuilder termsQueryBuilder) {
                    termsQueryBuilder.values().stream().forEach(o -> deletedDocIdList.add(o.toString()));
                }
                return deletedDocIdList.size();
            }
        };
        ComponentUtil.register(client, "searchEngineClient");
        final DocList docList = new DocList();

        assertNotNull(new Organization().toString());
    }

    public void testToStringNotNonsense11() {
        Organization org = new Organization();
        org.setName("Testing Maven Unit");
        org.setUrl("https://maven.localdomain");

        assertEquals("Organization {name=Testing Maven Unit, url=https://maven.localdomain}", org.toString());
    }

    public void testToStringNotNonsense10() {

    }

    public String toString() {
        StringBuilder buf = new StringBuilder();

        buf.append(isLowerBoundInclusive() ? '[' : '(');
        if (getLowerBound() != null) {
            buf.append(getLowerBound().toString());
        }
        buf.append(',');
        if (getUpperBound() != null) {
            buf.append(getUpperBound().toString());
        }

        MavenProperties sp = new MavenProperties(false);
        if (Files.exists(path)) {
            sp.load(path);
        }
        properties.forEach(
                (k, v) -> sp.put(k.toString(), escape ? DefaultInterpolator.escape(v.toString()) : v.toString()));
        loadIncludes(path, sp, callback);
        substitute(sp, callback);
        sp.forEach(properties::setProperty);
    }

        assertTrue(restriction.isLowerBoundInclusive(), CHECK_LOWER_BOUND_INCLUSIVE);
        assertEquals("1.4", restriction.getUpperBound().toString(), CHECK_UPPER_BOUND);
        assertTrue(restriction.isUpperBoundInclusive(), CHECK_UPPER_BOUND_INCLUSIVE);
        restriction = restrictions.get(2);
        assertEquals("1.5", restriction.getLowerBound().toString(), CHECK_LOWER_BOUND);

    assertEquals(ASCII, Files.toString(asciiFile, US_ASCII));
    assertEquals(I18N, Files.toString(i18nFile, UTF_8));
    assertThat(Files.toString(i18nFile, US_ASCII)).isNotEqualTo(I18N);
  }

  public void testWriteString() throws IOException {
    File temp = createTempFile();
    Files.write(I18N, temp, UTF_16LE);
    assertEquals(I18N, Files.toString(temp, UTF_16LE));
  }