fix: fix E721 lint errors

[rzhao271]

% ruff rule E721

type-comparison (E721)

Derived from the pycodestyle linter.

What it does

Checks for object type comparisons without using isinstance().

Why is this bad?

Do not compare types directly.

When checking if an object is a instance of a certain type, keep in mind
that it might be subclassed. For example, bool inherits from int, and
Exception inherits from BaseException.

Example

if type(obj) is type(1):
    pass

if type(obj) is int:
    pass

Use instead:

if isinstance(obj, int):
    pass