Expression of type "None" cannot be assigned to parameter of type "str"   "None" is not assignable to "str" (reportArgumentType)

Cannot assign to attribute "state_dict" for class "ModelEma*"   One or more overloads of "state_dict" is not assignable     Type "Dict[str, Any]" is not assignable to type "(*, destination: T_destination@state_dict, prefix: str = ..., keep_vars: bool = ...) -> T_destination@state_dict" (reportAttributeAccessIssue)

Cannot assign to attribute "state_dict" for class "ModelEma*" (reportAttributeAccessIssue)

Expression of type "None" cannot be assigned to parameter of type "str"   "None" is not assignable to "str" (reportArgumentType)

"update" is not a known attribute of "None" (reportOptionalMemberAccess)

Argument of type "Overload[(*, destination: T_destination@state_dict, prefix: str = ..., keep_vars: bool = ...) -> T_destination@state_dict, (*, prefix: str = ..., keep_vars: bool = ...) -> Dict[str, Any]]" cannot be assigned to parameter "state_dict" of type "Mapping[str, Any]" in function "load_state_dict"   "function" is not assignable to "Mapping[str, Any]" (reportArgumentType)

"state_dict" is not a known attribute of "None" (reportOptionalMemberAccess)

Argument of type "Dict[str, Any] | None" cannot be assigned to parameter "state_dict" of type "Mapping[str, Any]" in function "load_state_dict"   Type "Dict[str, Any] | None" is not assignable to type "Mapping[str, Any]"     "None" is not assignable to "Mapping[str, Any]" (reportArgumentType)

Argument of type "Overload[(*, destination: T_destination@state_dict, prefix: str = ..., keep_vars: bool = ...) -> T_destination@state_dict, (*, prefix: str = ..., keep_vars: bool = ...) -> Dict[str, Any]]" cannot be assigned to parameter "state_dict" of type "Mapping[str, Any]" in function "load_state_dict"   "function" is not assignable to "Mapping[str, Any]" (reportArgumentType)