Invalid callback. Setup on method with parameters (IRequest<Unit>, CancellationToken) cannot invoke callback with parameters

Question

Ihave this model

 public class UpdateUserProfilCommand : IMapFrom<UserProfil>, IRequest<Unit>
{
    public Guid IdContact { get; set; }
    public Guid IdCompany { get; set; }
    public Guid IdApplication { get; set; }
    public Guid IdPrivilege { get; set; }
    public bool IsActif { get; set; }
    public Guid? CrmId { get; set; }
    public string Initiator { get; set; }

    public void Mapping(Profile profile)
    {
        profile.CreateMap<UpdateUserProfilCommand, UpdatedUserProfilCommand>();
        profile.CreateMap<UpdateUserProfilCommand, UserProfil>();
    }
}

this ligne of code

        _mediator.Setup(m => m.Send(It.IsAny<UpdateUserProfilCommand>(), It.IsAny<CancellationToken>()))
        .Callback<UpdateUserProfilCommand, CancellationToken>((request, cancellationToken) =>
        {
            _updateUserProfilHandler.Handle(request, cancellationToken);
        }
         );

      
        await _deleteUserProfilPrivilegesHandler.Handle(commandHandler, CancellationToken.None);
        var entities = _context.UserProfils.Where(x => x.IdContact == IdContact && x.IdCompany == IdCompany).ToList();

        // Assert
        if (entities.Count > 0)
        {
            Assert.Equal(entities.Count(x => x.IsActif == false), entities.Count);
        }

i have this issus Invalid callback. Setup on method with parameters (IRequest, CancellationToken) cannot invoke callback with parameters (UpdateUserProfilCommand,