### Describe the issue with documentation

`BaseOperator` type hints for `retry_delay` and `max_retry_delay` shows `timedelta` only, however the params also accept `float` seconds values.
Also, type hint for `dag` param is missing.
More precise type hints and params descriptions in the docs can help to understand the code behavior easier.

### How to solve the problem

_No response_

### Anything else

_No response_

### Are you willing to submit PR?

- [X] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

airflow/models/baseoperator.py
"""Abstract base class that defines how we get an operator link."""
    operators: ClassVar[List[Type[BaseOperator]]] = []
    """
    This property will be used by Airflow Plugins to find the Operators to which you want
    to assign this Operator Link
    :return: List of Operator classes used by task for which you want to create extra link
    """
    @property
    @abstractmethod
    def name(self) -> str:
        """
        Name of the link. This will be the button name on the task UI.
        :return: link name
        """
    @abstractmethod
    def get_link(self, operator: BaseOperator, dttm: datetime) -> str:
        """
        Link to external system.
        :param operator: airflow operator
        :param dttm: datetime
        :return: link to external system
        """