to take advantage of sweet Kotlin features.

#### Credentials.basic()

The username and password parameters to `Credentials.basic()` are now non-null strings. In OkHttp
3.x, null would yield a username or password of "null".

#### HttpUrl.queryParameterValues()

The return type of `HttpUrl.queryParameterValues()` is `List<String?>`. Lists that may contain null

            }

            orchestrator.executeStrategies(context, pomMap);

            // Verify strategies were called (order verification would require more complex mocking)
            for (UpgradeStrategy strategy : mockStrategies) {
                verify(strategy).apply(Mockito.eq(context), Mockito.any());
            }
        }
    }

    @Nested

 *
 * <p>For example, the subclass could pass a {@link java.util.TreeMap} during construction, and
 * {@link #createCollection()} could return a {@link java.util.TreeSet}, in which case the
 * multimap's iterators would propagate through the keys and values in sorted order.
 *
 * <p>Keys and values may be null, as long as the underlying collection classes support null
 * elements.
 *

     * @return true if the OS matches
     *
     */
    public static boolean isFamily(String family, String actualOsName) {
        // windows probing logic relies on the word 'windows' in the OS
        boolean isWindows = actualOsName.contains(FAMILY_WINDOWS);
        boolean is9x = false;
        boolean isNT = false;
        if (isWindows) {

     * Returns the index that {@code actualLastElement} now resides in.
     *
     * <p>Since the last element of the array is actually in the middle of the sorted structure, a
     * childless aunt node could be smaller, which would corrupt the invariant if this element
     * becomes the new parent of the aunt node. In that case, we first switch the last element with
     * its aunt node, before returning.
     */

// APIs for generically dealing with op attributes (e.g. when forwarding them
// through custom device implementations).
//
// TODO(allenl): Currently these are black boxes, but we should have some way to
// inspect values. This would let people e.g. copy over most attributes and then
// modify some based on their values.

// A reference to an op's name -> attribute mapping
typedef struct TFE_OpAttrs TFE_OpAttrs;

 * Fix: Ensure `null` is never returned from a connection's `getHeaderFields()`.
 * Fix: Persist proper `Content-Encoding` header to cache for GZip responses.
 * Fix: Eliminate rare race condition in SPDY streams that would prevent connection reuse.
 * Fix: Change HTTP date formats to UTC to conform to RFC2616 section 3.3.
 * Fix: Support SPDY header blocks with trailing bytes.
 * Fix: Allow `;` as separator for `Cache-Control` header.

   */
  public static List<String> readLines(URL url, Charset charset) throws IOException {
    // don't use asCharSource(url, charset).readLines() because that returns
    // an immutable list, which would change the behavior of this method
    return readLines(
        url,
        charset,
        new LineProcessor<List<String>>() {
          final List<String> result = new ArrayList<>();

          @Override

### 2. Install boto3

Install `aws-sdk-python` from AWS SDK for Python official docs [here](https://aws.amazon.com/sdk-for-python/)

### 3. Example

            buf.append("\"data\":[");
            boolean first1 = true;
            for (final String word : popularWordList) {
                if (!first1) {
                    buf.append(',');
                } else {
                    first1 = false;
                }
                buf.append(escapeJson(word));
            }
            buf.append(']');