Argument of type "Literal['image/png']" cannot be assigned to parameter "__key" of type "slice" in function "__getitem__"   "Literal['image/png']" is incompatible with "slice" (reportGeneralTypeIssues)

Expression of type "dict[str, str]" cannot be assigned to return type "Tuple[dict[Unknown, Unknown], dict[Unknown, Unknown]]"   "dict[str, str]" is incompatible with "Tuple[dict[Unknown, Unknown], dict[Unknown, Unknown]]" (reportGeneralTypeIssues)