by API systems is data "<abbr title="also called marshalling, conversion">serialization</abbr>" which is taking data from the code (Python) and converting it into something that can be sent through the network. For example, converting an object containing data from a database into a JSON object. Converting `datetime` objects into strings, etc.

Another big feature needed by APIs is data validation, making sure that the data is valid, given certain parameters. For example, that some field...

	if len(results2) != 0 {
		t.Errorf("Search all records with inline map containing null value finding 0 records")
	}

	DB.Find(&results2, map[string]interface{}{"name": users[0].Name, "company_id": nil})
	if len(results2) != 1 {
		t.Errorf("Search all records with inline map containing null value finding 1 record")
	}

* `--service-account-lookup` now defaults to true, requiring the Secret API object containing the token to exist in order for a service account token to be valid. This enables service account tokens to be revoked by deleting the Secret object containing the token. ([#44071](https://github.com/kubernetes/kubernetes/pull/44071), [@liggitt](https://github.com/liggitt))

// and is always present. Following this are the entries, consisting of two
// fields (offset, length). This function must stop reading at the end
// boundary of the block containing the last newline.
//
// Note that the GNU manual says that numeric values should be encoded in octal
// format. However, the GNU tar utility itself outputs these values in decimal.

is treated as containing no pointers to runtime-allocated data.
A data symbol with the <code>RODATA</code> flag
is allocated in read-only memory and is therefore treated
as implicitly marked <code>NOPTR</code>.
A data symbol with a total size smaller than a pointer
is also treated as implicitly marked <code>NOPTR</code>.
It is not possible to define a symbol containing pointers in an assembly source file;

                }
                System.setProperty(e.getKey(), e.getValue());
            });
        }
    }

    /**
     * Updates the application configuration.
     *
     * @return A string containing the results of the update.
     */
    public String updateConfiguration() {
        final StringBuilder buf = new StringBuilder();
        updateConfigListenerMap.entrySet().stream().forEach(e -> {

    String origin_server = null;
    NtlmPasswordAuthentication origin_auth = null;

    /**
     * Construct a SID from it's binary representation.
     *
     * @param src the byte array containing the SID
     * @param si the starting index in the array
     */
    public SID(final byte[] src, int si) {
        revision = src[si];
        si++;
        sub_authority_count = src[si++];

    set(value) {
      val protocolList = value.toImmutableList()
      require(Protocol.H2_PRIOR_KNOWLEDGE !in protocolList || protocolList.size == 1) {
        "protocols containing h2_prior_knowledge cannot use other protocols: $protocolList"
      }
      require(Protocol.HTTP_1_1 in protocolList || Protocol.H2_PRIOR_KNOWLEDGE in protocolList) {
        "protocols doesn't contain http/1.1: $protocolList"

    return (comparator == null)
        ? new TreeMultiset<E>((Comparator) Ordering.natural())
        : new TreeMultiset<E>(comparator);
  }

  /**
   * Creates an empty multiset containing the given initial elements, sorted according to the
   * elements' natural order.
   *
   * <p>This implementation is highly efficient when {@code elements} is itself a {@link Multiset}.
   *

    }

    /**
     * Retrieves a single document matching the search condition.
     *
     * @param index     the index name
     * @param condition the search condition
     * @return an optional containing the document if found
     */
    public OptionalEntity<Map<String, Object>> getDocument(final String index, final SearchCondition<SearchRequestBuilder> condition) {