session.addAssistantMessage("Assistant 2");
        session.addUserMessage("User 3");
        session.addAssistantMessage("Assistant 3");
        assertEquals(6, session.getMessageCount());

        // Trimming to 3 would start at index 3 (assistant), so it should go back to index 2 (user)
        session.trimHistory(3);

        final List<ChatMessage> messages = session.getMessages();
        assertEquals(4, messages.size());

func ParsePublicCertFile(certFile string) (x509Certs []*x509.Certificate, err error) {
	// Read certificate file.
	var data []byte
	if data, err = os.ReadFile(certFile); err != nil {
		return nil, err
	}

	// Trimming leading and tailing white spaces.
	data = bytes.TrimSpace(data)

	// Parse all certs in the chain.
	current := data
	for len(current) > 0 {
		var pemBlock *pem.Block

    assertThat(CharMatcher.any().collapseFrom("ab", '_')).isEqualTo("_");
    assertThat(CharMatcher.any().collapseFrom("abcd", '_')).isEqualTo("_");
  }

  public void testTrimFrom() {
    // trimming -
    doTestTrimFrom("-", "");
    doTestTrimFrom("x-", "x");
    doTestTrimFrom("-x", "x");
    doTestTrimFrom("--", "");
    doTestTrimFrom("x--", "x");
    doTestTrimFrom("--x", "x");

            buf.append(value).append("\n");
        }
        return buf.toString();
    }

    /**
     * Checks if the buffer contains a line that matches the specified value (after trimming).
     *
     * @param value the value to search for in the buffered lines
     * @return true if a matching line is found, false otherwise
     */
    public boolean contains(final String value) {

    //
    // 9) Execute AbstractLifecycleParticipant.afterProjectsRead(session)
    //
    // 10) Create ProjectDependencyGraph without trimming (as trimming was done in 7). A new topological sort is
    // required after the execution of 9) as the AbstractLifecycleParticipants are free to mutate the MavenProject

func (c *muxClient) traceRoundtrip(ctx context.Context, t *tracer, h HandlerID, req []byte) ([]byte, error) {
	if t == nil || t.Publisher.NumSubscribers(t.TraceType) == 0 {
		return c.roundtrip(h, req)
	}

	// Following trimming is needed for consistency between outputs with other internode traces.
	local := strings.TrimPrefix(strings.TrimPrefix(t.Local, httpsScheme), httpScheme)

		// needed.
		// String might contain trimming spaces, which
		// needs to be trimmed.
		res, ok := strToInt(strings.TrimSpace(x))
		if !ok {
			return 0, errCastFailure("could not parse as int")
		}
		return res, nil
	case []byte:
		// Parse as number, truncate floating point if
		// needed.
		// String might contain trimming spaces, which
		// needs to be trimmed.

    assertThat(formEncode(255)).isEqualTo("%C3%BF")
  }

  @Throws(IOException::class)
  private fun formEncode(codePoint: Int): String {
    // Wrap the codepoint with regular printable characters to prevent trimming.
    val body =
      FormBody
        .Builder()
        .add("a", String(intArrayOf('b'.code, codePoint, 'c'.code), 0, 3))
        .build()
    val buffer = Buffer()
    body.writeTo(buffer)

 *   <li><strong>Root Attribute</strong>: Adds {@code root="true"} attribute to root project</li>
 *   <li><strong>Parent Element Trimming</strong>:
 *     <ul>
 *       <li>Removes parent {@code <groupId>} when child has no explicit groupId</li>
 *       <li>Removes parent {@code <version>} when child has no explicit version</li>

    }

    /**
     * Trims the prefix.
     *
     * @param propertyName
     *            The property name
     * @return The result after trimming
     */
    protected String trimPrefix(final String propertyName) {
        if (prefix == null) {
            return propertyName;
        }
        return propertyName.substring(prefix.length());
    }