v1.18.0

chore: release 1.18.0 (#33)

:robot: I have created a release \*beep\* \*boop\* 
---
## [1.18.0](https://www.github.com/googleapis/python-api-core/compare/v1.17.0...v1.18.0) (2020-06-04)


### Features

* [CBT-6 helper] Exposing Retry._deadline as a property ([#20](https://www.github.com/googleapis/python-api-core/issues/20)) ([7be1e59](https://www.github.com/googleapis/python-api-core/commit/7be1e59e9d75c112f346d2b76dce3dd60e3584a1))
* add client_encryped_cert_source to ClientOptions ([#31](https://www.github.com/googleapis/python-api-core/issues/31)) ([e4eaec0](https://www.github.com/googleapis/python-api-core/commit/e4eaec0ff255114138d3715280f86d34d861a6fa))
* AsyncIO Integration [Part 2] ([#28](https://www.github.com/googleapis/python-api-core/issues/28)) ([dd9b2f3](https://www.github.com/googleapis/python-api-core/commit/dd9b2f38a70e85952cc05552ec8070cdf29ddbb4)), closes [#23](https://www.github.com/googleapis/python-api-core/issues/23)
* First batch of AIO integration ([#26](https://www.github.com/googleapis/python-api-core/issues/26)) ([a82f289](https://www.github.com/googleapis/python-api-core/commit/a82f2892b8f219b82e120e6ed9f4070869c28be7))
* third batch of AsyncIO integration ([#29](https://www.github.com/googleapis/python-api-core/issues/29)) ([7d8d580](https://www.github.com/googleapis/python-api-core/commit/7d8d58075a92e93662747d36a2d55b5e9f0943e1))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please).

v1.17.0

Features

• api_core: add retry param into PollingFuture() and it's inheritors (#9923) (14f1f34), closes #6197
• api-core: add client_cert_source to ClientOptions (#17) (748c935)

Bug Fixes

• consume part of StreamingResponseIterator to support failure while under a retry context (#10206) (2b103b6)

v1.16.0

01-13-2020 14:19 PST

New Features

• feat(storage): support optionsRequestedPolicyVersion (#9989)
• feat(api_core): support version 3 policy bindings (#9869)

v1.15.0

12-16-2019 15:27 PST

New Features

• Make the last retry happen at deadline. (#9873)
• Add a repr method for ClientOptions. (#9849)
• Simplify from_rfc3339 methods. (#9641)
• Provide a raw_page field for page_iterator.Page. (#9486)

Documentation

• Add Python 2 sunset banner to documentation. (#9036)
• Remove references to the old authentication credentials. (#9456)

v1.14.3

10-07-2019 10:35 PDT

Implementation Changes

• Finalize during close of 'ResumableBidiRpc' (#9337)
• add on_error to Retry.init (#8892)
• Fix race in 'BackgroundConsumer._thread_main'. (#8883)

Documentation

• Fix intersphinx reference to requests (#9294)
• Fix broken links in docs. (#9148)
• About of time -> amount of time (#9052)
• Remove compatability badges from READMEs. (#9035)

Internal / Testing Changes

• Remove CI for gh-pages, use googleapis.dev for api_core refs. (#9085)

v1.14.2

07-30-2019 14:08 PDT

Documentation

• Add client_options documentation. (#8834)

v1.14.1

07-30-2019 12:24 PDT

Implementation Changes

• Remove error log entry on clean BiDi shutdown. (#8806)
• Forward 'timeout' arg from 'exception' to _blocking_poll. (#8735)

Documentation

• Update intersphinx mapping for requests. (#8805)
• Link to googleapis.dev documentation in READMEs. (#8705)

v1.14.0

07-17-2019 13:16 PDT

New Features

• Firestore: Add should_terminate predicate for clean BiDi shutdown. (#8650)

Dependencies

• Update pins of 'googleapis-common-protos. (#8688)

Documentation

• Add compatibility check badges to READMEs. (#8288)

Internal / Testing Changes

• All: Add docs job to publish to googleapis.dev. (#8464)

v1.13.0

06-24-2019 10:34 PDT

New Features

• Add client_options.ClientOptions object. (#8265)

v1.12.0

06-18-2019 12:37 PDT

New Features

• Add Throttling to Bidi Reopening. Mitigates ResumableBidiRpc consuming 100% CPU (#8193)