Switch from py2 type comments to py3 type hint

[MrSnapperVibes]

Resolves #79

Also,

• removed if TYPE_CHECKING
• removed Any type from self parameters (following PEP 484's style guidelines)

[cla-checker-service]

❌ Author of the following commits did not sign a Contributor Agreement:
e21f2b5

Please, read and sign the above mentioned agreement if you want to contribute to this project