For the specified user in the specified identity store, updates the user metadata and attributes.
See https://www.paws-r-sdk.com/docs/identitystore_update_user/ for full documentation.
identitystore_update_user(IdentityStoreId, UserId, Operations)
[required] The globally unique identifier for the identity store.
[required] The identifier for a user in the identity store.
[required] A list of AttributeOperation
objects to apply to the requested user.
These operations might add, replace, or remove an attribute.