InternalCoordinateSystem
Represents Internal coordinates generally
name: str
__init__(self, dimension=None, coordinate_shape=None, converter_options=None, **opts):
converter_options:None | dictoptions to be passed through to a
CoordinateSystemConvertercoordinate_shape:Iterable[None | int]shape of a single coordinate in this coordiante system
dimension:Iterable[None | int]the dimension of the coordinate system
opts:Anyother options, if
converter_optionsis None, these are used as theconverter_options