to use the 2D movement you need to make a script you can name the script whatever you want
use the namespace BEs.Tutorials.Movement._2D on your script remove the MonoBehaviour and replace it with PlayerMovement
and then you must write
using BEs.Tutorials.Movement._2D;
public class YourScriptName : PlayerMovement
{
void Update()
{
movement();
WallJump();
//movement is so the player can move, jump...
//wallJump is so the player can walljump
//need to fix walljumping
}
}