Yes. "[]" would denote the operator for accessing element of collection associated with key/index k by [k] syntax. Similarly "[]=" would denote operator for st

Yes. "[]" would denote the operator for accessing element of collection associated with key/index k by [k] syntax. Similarly "[]=" would denote operator for storing element under a given key/index. E.g. in python these would correspond to a custom type implementing https://docs.python.org/3/reference/datamodel.html#object.__getitem__ https://docs.python.org/3/reference/datamodel.html#object.__... & https://docs.python.org/3/reference/datamodel.html#object.__setitem__ https://docs.python.org/3/reference/datamodel.html#object.__...