Influxdb

Features
1. [203](https://github.com/influxdata/influxdb-client-python/pull/203): Configure a client via TOML file
1. [215](https://github.com/influxdata/influxdb-client-python/pull/215): Configure a connection pool maxsize

Bug Fixes
1. [206](https://github.com/influxdata/influxdb-client-python/pull/207): Use default (system) certificates instead of Mozilla's root certificates (certifi.where())
1. [217](https://github.com/influxdata/influxdb-client-python/pull/217): Fix clone_task function

API
1. [209](https://github.com/influxdata/influxdb-client-python/pull/209): Allow setting shard-group durations for buckets via API

Documentation
1. [202](https://github.com/influxdata/influxdb-client-python/pull/202): Added an example how to use RxPY and sync batching
1. [213](https://github.com/influxdata/influxdb-client-python/pull/213): Added an example how to use Buckets API

Bug Fixes
1. [193](https://github.com/influxdata/influxdb-client-python/pull/193): Fixed `tasks_api` to use proper function to get `Run`

Documentation
1. [200](https://github.com/influxdata/influxdb-client-python/pull/200): Updated docs, examples, tests: use `close` instead of `__del__`.

CI
1. [199](https://github.com/influxdata/influxdb-client-python/pull/199): Updated stable image to `influxdb:latest` and nightly to `quay.io/influxdb/influxdb:nightly`

Features
1. [176](https://github.com/influxdata/influxdb-client-python/pull/179): Allow providing proxy option to InfluxDBClient

CI

Features
1. [171](https://github.com/influxdata/influxdb-client-python/pull/171): CSV parser is able to parse export from UI

Bug Fixes
1. [170](https://github.com/influxdata/influxdb-client-python/pull/170): Skip DataFrame rows without data - all fields are nan.

CI

1. [163](https://github.com/influxdata/influxdb-client-python/pull/163): Added support for Python 3.9

Features
1. [161](https://github.com/influxdata/influxdb-client-python/pull/161): Added logging message for retries

Bug Fixes
1. [164](https://github.com/influxdata/influxdb-client-python/pull/164): Excluded tests from packaging

Features
1. [152](https://github.com/influxdata/influxdb-client-python/pull/152): WriteApi supports generic Iterable type
1. [158](https://github.com/influxdata/influxdb-client-python/pull/158): Added possibility to specify certificate file path to verify the peer

API
1. [151](https://github.com/influxdata/influxdb-client-python/pull/151): Default port changed from 9999 -> 8086
1. [156](https://github.com/influxdata/influxdb-client-python/pull/156): Removed labels in organization API, removed Pkg* structure and package service

Bug Fixes
1. [154](https://github.com/influxdata/influxdb-client-python/pull/154): Fixed escaping string fields in DataFrame serialization