Use create_role_membership
to add an existing Amazon QuickSight group to an existing role.
See https://www.paws-r-sdk.com/docs/quicksight_create_role_membership/ for full documentation.
quicksight_create_role_membership(MemberName, AwsAccountId, Namespace, Role)
[required] The name of the group that you want to add to the role.
[required] The ID for the Amazon Web Services account that you want to create a group in. The Amazon Web Services account ID that you provide must be the same Amazon Web Services account that contains your Amazon QuickSight account.
[required] The namespace that the role belongs to.
[required] The role that you want to add a group to.