def iter_shape_elms(self):
        for elm in self.iterchildren():
            if elm.tag in self._shape_tags:
                yield elm
Determines if the given token is the first non-space token on its line.
dataset/ETHPy150Open scanny/python-pptx/pptx/oxml/shapes/groupshape.py/CT_GroupShape.iter_shape_elms--crossover with--dataset/ETHPy150Open google/closure-linter/closure_linter/indentation.py/IndentationRules._IsFirstNonWhitespaceTokenInLine