Constructs a new SaveTextActivityMutation instance.
The authentication token.
saveTextActivity is a method that sends a mutation request to save a text activity.
An object of type SaveTextActivityVariables representing the variables for the mutation.
A Promise that resolves to the response from the mutation request.
Will throw an error if the mutation request fails or if the provided variables do not pass the validation checks.
SaveTextActivityMutationis a class representing a mutation to save a text activity. It includes a method to save a text activity