Updates an existing project column.

Input fields

input (UpdateProjectColumnInput!)

Return fields

clientMutationId (String)

A unique identifier for the client performing the mutation.

projectColumn (ProjectColumn!)

The updated project column.

Upcoming Change on 2019-01-01 UTC Description: Type for projectColumn will change from ProjectColumn! to ProjectColumn. Reason: In preparation for an upcoming change to the way we report mutation errors, non-nullable payload fields are becoming nullable.