django-tables change header with variable

[Sixtine Vernhes]

Using django-tables2 I try to have 2 dimensions table. I tried to make this using accessors with the docs here But it doesn't work at all.

I don't seen any example and I don't know if it's possible. Has anyone has an idea?

Here my code :

#views.py
def visualiserTableResult(request):
   choix= request.POST['type_donnees']
   sample = Sample.objects.all()
   antibiotique = Antibiotique.objects.all()
   data = []
   for s in sample:
     for a in antibiotique:
        echantillon = Echantillon.objects.filter(antibiotique_id=a.antibio_id).filter(sample_id=s.sample_id).values(
            'echantillon_id')
        if choix == "C":
            res = Resultats.objects.filter(echantillon_id=echantillon).values_list("res_C")
        if choix == "S":
            res = Resultats.objects.filter(echantillon_id=echantillon).values_list('res_S', flat=True)
        if choix == "d":
            res = Resultats.objects.filter(echantillon_id=echantillon).values_list('res_d', flat=True)

        data.append({s: {a:  res}})
   table = GeneralTable(data)
   RequestConfig(request).configure(table)
   return render(request, 'resistance/visualiserTableResult.html', {'table': table})

#tables.py
class GeneralTable(tables.Table):
   sample = tables.Column(accessor=('s'))
   antibiotique = tables.Column(attrs={'th': {'antibiotique': 'a'}})

   class Meta:
     attrs = {'class': 'paleblue'}

#models.py
class Echantillon (models.Model):
   echantillon_id = models.IntegerField(primary_key=True)
   antibiotique = models.ForeignKey('Antibiotique', on_delete=models.CASCADE)
   sample = models.ForeignKey(Sample, on_delete=models.CASCADE)
   resistance = models.ManyToManyField(
    'Type_resistance',
    through='Resultats'
)

class Resultats (models.Model):
   resultats_id = models.IntegerField(primary_key=True)
   echantillon = models.ForeignKey('Echantillon', on_delete=models.CASCADE)
   resistance = models.ForeignKey('Type_resistance', on_delete=models.CASCADE)
   res_C = models.DecimalField(max_digits=5, decimal_places=2,null=True)
   res_S = models.CharField(max_length=10, null=True)
   res_d = models.DecimalField(max_digits=5, decimal_places=2, null=True)
   comment = models.TextField(null=True)

I want to have a table with values of "antibiotique" in headers and result for each sample.I hope that someone have an idea