Yields aligned residues
:param aln: The alignment with 2 sequences defining a residue-by-residue
relationship.
:type aln: :class:`ost.seq.AlignmentHandle`
:param s1_ent: Structure representing first sequence in *aln*.
One chain must be named after the first sequence and the
number of residues must match the number of non-gap
characters.
:type s1_ent: :class:`ost.mol.EntityHandle`/:class:`ost.mol.EntityView`
:param s2_ent: Same for second sequence in *aln*.
:type s2_ent: :class:`ost.mol.EntityHandle`/:class:`ost.mol.EntityView`
Definition at line 25 of file scoring.py.