### Using Development Scripts for QPyLib Development

Source: https://github.com/ibm/qpylib/blob/master/CONTRIBUTING.md

The QPyLib project provides three main scripts for development: lint.sh for code style checking, test.sh for running unit tests, and build.sh for creating distribution packages. These scripts replicate the CI pipeline locally and must pass before pull requests are accepted.

```bash
* `lint.sh`
* `test.sh`
* `build.sh`
```

--------------------------------

### Documenting QPyLib Changelog in Markdown

Source: https://github.com/ibm/qpylib/blob/master/CHANGELOG.md

This code snippet presents the changelog for QPyLib in Markdown format. It details version updates from 2.0 to 2.0.9, highlighting key changes, additions, and fixes for each version.

```Markdown
# Changelog

## 2.0.9
- Add override for `qpylib.REST` default timeout.

## 2.0.8
- `qpylib.log` now sanitizes the supplied `message` text to suppress any embedded control characters.

## 2.0.7
- Update dependency versions.

## 2.0.6
- Fix missing `util_qpylib` missing from `qpylib` parent module.

## 2.0.5
- SDK rest calls now default to verify=True rather than verify=False.
- Add protection against multiple calls of create_log().
- Add create_log() flag to enable/disable SysLogHandler.

## 2.0.4
- Update cryptography package version to address security vulnerabilities.

## 2.0.3
- Freeze pip requirements.
- Add wheel generation.

## 2.0.2
- Log handling changes.
- Cancel and delete functions added to `ariel.py` module.

## 2.0.1
- Non-SDK REST calls default to `verify=True`.
SDK default remains `verify=False` for now, but that will change in a future release.

## 2.0
- First official release of qpylib on Github.
- Support for Python 3 and Red Hat UBI app base image.
- abstract/sdk/live layers removed.
- New encryption algorithm in `encdec.py`, plus backwards compatibility with previous algorithms.
All `encdec` error-handling is now performed using `encdec.EncryptionError`.
- New `ariel.py` module supports Ariel searches via REST API.
- `get_app_id` now uses `QRADAR_APP_ID` environment variable instead of manifest value.
- REST methods now pass through `kwargs`.
- `REST` now uses `localhost` instead of `gethostname()`.
- Functions with changed parameter names: `get_root_path`, `get_store_path`, `REST`.
```

--------------------------------

### Defining QRadar App UUID and Encrypted Keys for v3

Source: https://github.com/ibm/qpylib/blob/master/test/encdec_db/README.txt

Sets the QRadar App UUID for version 3 and defines encrypted key-value pairs for 'mykey' and 'mytoken'. This snippet is generated using encdec from Github qpylib commit 36d53c482.

```Python
QRADAR_APP_UUID = '5b7e8085-ca96-41e1-8e4b-2983f0d595b8'
Contents:
  name = 'mykey', secret = '12345678'
  name = 'mytoken', secret = 'abcdefghij'
```

--------------------------------

### Defining QRadar App UUID and Encrypted Keys for v2

Source: https://github.com/ibm/qpylib/blob/master/test/encdec_db/README.txt

Sets the QRadar App UUID for version 2 and defines encrypted key-value pairs for 'mykey' and 'mytoken'. This snippet is generated using encdec from qradar_base_app_tarball for Python 2 with pycrypto.

```Python
QRADAR_APP_UUID = 'a1b2c3d4-4896-11e8-842f-0ed5f89f718b'
Contents:
  name = 'mykey', secret = '12345678'
  name = 'mytoken', secret = 'abcdefghij'
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.