new_contents: from geonature.utils.env import DB
  from utils_flask_sqla.serializers import serializable
  
  @serializable
  class VmCorTaxonPhenology(DB.Model):
      __tablename__ = "vm_cor_taxon_phenology"
      __table_args__ = {"schema": "gn_profiles"}
      cd_ref = DB.Column(DB.Integer)
      period = DB.Column(DB.Integer)
      id_nomenclature_life_stage = DB.Column(DB.Integer)
      id_altitude_range = DB.Column(DB.Integer)
      count_valid_data = DB.Column(DB.Integer)
  
subject: Add VmCorTaxonPhenology Class