* `le`: `l`ess than or `e`qual
!!! info
- `Query`, `Path`, and others you will see later are subclasses of a common `Param` class (that you don't need to use).
+ `Query`, `Path`, and other classes you will see later are subclasses of a common `Param` class.
- And all of them share the same all these same parameters of additional validation and metadata you have seen.
+ All of them share the same parameters for additional validation and metadata you have seen.
!!! note "Technical Details"
When you import `Query`, `Path` and others from `fastapi`, they are actually functions.