Support GraphQL Promises for getters

[gonzalojaubert]

Description

Support GraphQL Promises for getters

Checks

• [X] Project Builds
• [X] Project passes tests and checks
• [X] Updated documentation accordingly

[ghost]

👇 Click on the image for a new way to code review

• Make big changes easier — review code in small groups of related files

• Know where to start — see the whole change at a glance

• Take a code tour — explore the change with an interactive tour

• Make comments and review — all fully sync’ed with github

  Try it now!

Legend