old_contents: from django.db import models
  
  from accelerator_abstract.models.accelerator_model import AcceleratorModel
  
  BLACK = 'Black'
  EAST_SOUTHEAST_ASIAN = 'East and/or Southeast Asian'
  HISPANIC_LATINX_SPANISH = 'Hispanic, Latinx, and/or Spanish'
  INDIGENOUS = 'Indigenous'
  HAWAIIAN_PACIFIC_POLYNESIAN = 'Native Hawaiian, Pacific Islander, or Polynesian'
  MIDDLE_EASTERN_NORTH_AFRICAN = 'Middle Eastern and/or North African'
  NORTH_CENTRAL_ASIAN = 'North and/or Central Asian'
  SOUTH_ASIAN = 'South Asian'
  WHITE_CAUCASIAN = 'White or Caucasian'
  PREFER_NOT_TO_STATE = 'I prefer not to say'
  
  ETHNO_RACIAL_IDENTITY_CHOICES = [
      (BLACK, 'e.g., African American, Haitian, Nigerian, Somali'),
      (EAST_SOUTHEAST_ASIAN, 'e.g., Chinese, Filipino, Korean, Indonesian'),
      (HISPANIC_LATINX_SPANISH, 'e.g., Brazilian, Colombian, Mexican, Nicaraguan'),
      (INDIGENOUS, 'e.g., Aboriginal, Inuit, Maasai, Native American'),
      (HAWAIIAN_PACIFIC_POLYNESIAN, 'Native Hawaiian, Pacific Islander, or Polynesian'),
      (MIDDLE_EASTERN_NORTH_AFRICAN, 'e.g., Egyptian, Emirati, Iranian, Moroccan'),
      (NORTH_CENTRAL_ASIAN, 'e.g., Kazakh, Siberian, Tajik, Uzbek'),
      (SOUTH_ASIAN, 'e.g., Bangladeshi, Indian, Pakistani, Sri Lankan'),
      (WHITE_CAUCASIAN, 'White or Caucasian'),
      (PREFER_NOT_TO_STATE, 'I prefer not to say'),
  ]
  
  
  class BaseEthnoRacialIdentity(AcceleratorModel):
      identity = models.CharField(max_length=100,
                                  blank=True,
                                  null=True,
                                  choices=ETHNO_RACIAL_IDENTITY_CHOICES)
  
      class Meta(AcceleratorModel.Meta):
          db_table = 'accelerator_ethnoracialidentity'
          abstract = True
  
new_contents: from django.db import models
  
  from accelerator_abstract.models.accelerator_model import AcceleratorModel
  
  BLACK = 'Black'
  EAST_SOUTHEAST_ASIAN = 'East and/or Southeast Asian'
  HISPANIC_LATINX_SPANISH = 'Hispanic, Latinx, and/or Spanish'
  INDIGENOUS = 'Indigenous'
  HAWAIIAN_PACIFIC_POLYNESIAN = 'Native Hawaiian, Pacific Islander, or Polynesian'
  MIDDLE_EASTERN_NORTH_AFRICAN = 'Middle Eastern and/or North African'
  NORTH_CENTRAL_ASIAN = 'North and/or Central Asian'
  SOUTH_ASIAN = 'South Asian'
  WHITE_CAUCASIAN = 'White or Caucasian'
  PREFER_NOT_TO_STATE = 'I prefer not to say'
  
  ETHNO_RACIAL_IDENTITY_CHOICES = [
      (BLACK, 'e.g., African American, Haitian, Nigerian, Somali'),
      (EAST_SOUTHEAST_ASIAN, 'e.g., Chinese, Filipino, Korean, Indonesian'),
      (HISPANIC_LATINX_SPANISH, 'e.g., Brazilian, Colombian, Mexican, Nicaraguan'),
      (INDIGENOUS, 'e.g., Aboriginal, Inuit, Maasai, Native American'),
      (HAWAIIAN_PACIFIC_POLYNESIAN, 'Native Hawaiian, Pacific Islander, or Polynesian'),
      (MIDDLE_EASTERN_NORTH_AFRICAN, 'e.g., Egyptian, Emirati, Iranian, Moroccan'),
      (NORTH_CENTRAL_ASIAN, 'e.g., Kazakh, Siberian, Tajik, Uzbek'),
      (SOUTH_ASIAN, 'e.g., Bangladeshi, Indian, Pakistani, Sri Lankan'),
      (WHITE_CAUCASIAN, 'White or Caucasian'),
      (PREFER_NOT_TO_STATE, 'I prefer not to say'),
  ]
  
  
  class BaseEthnoRacialIdentity(AcceleratorModel):
      identity = models.CharField(max_length=100,
                                  blank=True,
                                  null=True,
                                  choices=ETHNO_RACIAL_IDENTITY_CHOICES)
  
      class Meta(AcceleratorModel.Meta):
          db_table = 'accelerator_ethnoracialidentity'
          abstract = True
  
      def __str__(self):
          return self.identity
  
subject: update ethno racial identity __str__