code: def make_SimData(g):
      
      return SimData([i.position for i in g.mutations()],
                     [i for i in g.haplotypes()])
docs: Construct a :class:`libsequence.polytable.SimData` from
      the output of msprime.
  
      :param g: The output from msprime
  
      .. note::
          Thanks to Jerome Kelleher for pointing out the
          quick implementation using msprime >= 0.4.0.
  
      .. versionchanged:: 0.2.0
          Much faster implementation via haplotypes in tree sequence
  
      Example:
  
      >>> import msprime as msp
      >>> from libsequence.msprime import make_SimData
      >>> g = msp.simulate(sample_size = 10, Ne=1e6,\
                           recombination_rate=1e-8, \
                           mutation_rate=1e-8,length=1e4)
      >>> s = make_SimData(g)