Morbidity warning: is there a characteristic pattern of dreaming associated with impending death?

I am emphatically not talking about folklore and cultural symbols, omens, or any notion of interpreting the meaning of dreams as forecasting certain events.

Rather, I’m asking if people who are close to death have reported dreams that have characteristic patterns in common. This is a question about scientific observation (given the limitations of self-report) and not superstition.

By “close to death” I mean that the dreams occurred during their final days or weeks, whether or not there was any reason beforehand to anticipate their death (i.e., they may not have been understood to be “dying,” but they nevertheless died within a short time after reporting the dreams).

If so, what are those patterns?