Check if there are any extant offspring demes.
Check if there are any extant parental demes.
Pointer to first element of cloning rates array.
Initialize graph to begin iterating over model.
Iterate to the next time point in the model.
Get the model end time.
Get the total number of demes in the model
Return a pointer to the first element of offspring deme size array.
Return a pointer to the first element of parental deme size array.
Pointer to first element of selfing rates array.
Update the model state to a given time.