def maybe_set_size(self, min_itemsize=None):
if _ensure_decoded(self.kind) == '<STR_LIT:string>':<EOL><INDENT>if isinstance(min_itemsize, dict):<EOL><INDENT>min_itemsize = min_itemsize.get(self.name)<EOL><DEDENT>if min_itemsize is not None and self.typ.itemsize < min_itemsize:<EOL><INDENT>self.typ = _tables(<EOL>).StringCol(itemsize=min_itemsize, pos=self.pos)<EOL><DEDENT><DEDENT>
maybe set a string col itemsize:
               min_itemsize can be an integer or a dict with this columns name
               with an integer size