v3.5.0a0

New features

• Add execute-timeout argument for gql-cli (#349)

Bug fixes

• Fix KeyError when errors is not iterable (#359)
• Handle JSON response being None (#365)
• Get response headers even with 4xx return code (#367)

Documentation

• Add documentation on websockets level ping frames (#345)
• Minor Spelling Mistake (#351)
• Add phoenix channel transport example (#354)

Misc

• Make AsyncTransport and Transport proper abstract base classes (#350)
• Update graphql-core to 3.3.0 and dropping support for Python 3.6 (#363)