Strongly recommended for the best service experience. If [upd
ate_mask][google.cloud.talent.v4beta1.UpdateApplicationReques
t.update_mask] is provided, only the specified fields in [app
lication][google.cloud.talent.v4beta1.UpdateApplicationRequest
.application] are updated. Otherwise all the fields are
updated. A field mask to specify the application fields to be
updated. Only top level fields of
Application are
supported.