def write_drawing(worksheet):
"""
Add link to drawing if required
"""
if worksheet._charts or worksheet._images:
rel = Relationship(type="drawing", Target="")
worksheet._rels.append(rel)
drawing = Related()
drawing.id = rel.id
return drawing.to_tree("drawing")
def write_drawing(worksheet):
"""
Add link to drawing if required
"""
if worksheet._charts or worksheet._images:
rel = Relationship(type="drawing", target="")
worksheet._rels.append(rel)
drawing = Related()
drawing.id = "rId%s" % len(worksheet._rels)
return drawing.to_tree("drawing")
