Retrieve a list of genders

{
  "type": "array",
  "items": {
    "type": "object",
    "description": "The Gender resource.",
    "properties": {
      "gender": {
        "type": "string",
        "description": "The gender."
      },
      "id": {
        "description": "The resource's unique identifier.",
        "type": "object"
      }
    }
  }
}