old_contents: from opencivicdata import common
  
  contact_details = {
      "type": "array",
      "items": {
          "type": "object",
          "properties": {
              "type": {"type": "string", "enum": common.CONTACT_TYPES},
              "value": {"type": "string"},
              "note": {"type": "string", "blank": True},
              "label": {"type": "string", "blank": True},
          }
      }
  }
  
  identifiers = {
      "items": {
          "properties": {
              "identifier": {"type": "string" },
              "scheme": {"type": "string", "blank": True},
          }
      },
      "type": "array",
  }
  
  fuzzy_date = {"type": "string", "pattern": "(^[0-9]{4})?(-[0-9]{2}){0,2}$"}
  fuzzy_date_blank = {"type": "string", "pattern": "(^[0-9]{4})?(-[0-9]{2}){0,2}$", "blank": True}
  fuzzy_datetime_blank = {"type": "string",
                          "pattern": "(^[0-9]{4})?(-[0-9]{2}){0,2}( [0-9]{2}:[0-9]{2}:[0-9]{2})?$",
                          "blank": True}
  
  other_names = {
      "items": {
          "properties": {
              "name": {"type": "string"},
              "start_date": fuzzy_date_blank,
              "end_date": fuzzy_date_blank,
              "note": {"type": "string", "blank": True }
              },
          "type": "object"
          }
      "type": "array"
  }
  
  
  links = {
      "items": {
          "properties": {
              "note": { "type": "string", "blank": True },
              "url": { "format": "uri", "type": "string" }
          },
          "type": "object"
      },
      "type": "array"
  }
  
  
  sources = {
      "items": {
          "properties": {
              "url": { "type": "string" },
              "note": { "type": "string", "blank": True }
          },
          "type": "object"
      },
      "minItems": 1,
      "type": "array"
  }
  
  extras = {
      "type": "object",
  }
  
new_contents: from opencivicdata import common
  
  contact_details = {
      "type": "array",
      "items": {
          "type": "object",
          "properties": {
              "type": {"type": "string", "enum": common.CONTACT_TYPES},
              "value": {"type": "string"},
              "note": {"type": "string", "blank": True},
              "label": {"type": "string", "blank": True},
          }
      }
  }
  
  identifiers = {
      "items": {
          "properties": {
              "identifier": {"type": "string" },
              "scheme": {"type": "string", "blank": True},
          }
      },
      "type": "array",
  }
  
  fuzzy_date = {"type": "string", "pattern": "(^[0-9]{4})?(-[0-9]{2}){0,2}$"}
  fuzzy_date_blank = {"type": "string", "pattern": "(^[0-9]{4})?(-[0-9]{2}){0,2}$", "blank": True}
  fuzzy_datetime_blank = {"type": "string",
                          "pattern": "(^[0-9]{4})?(-[0-9]{2}){0,2}( [0-9]{2}:[0-9]{2}:[0-9]{2})?$",
                          "blank": True}
  
  other_names = {
      "items": {
          "properties": {
              "name": {"type": "string"},
              "start_date": fuzzy_date_blank,
              "end_date": fuzzy_date_blank,
              "note": {"type": "string", "blank": True }
              },
          "type": "object"
          },
      "type": "array"
  }
  
  
  links = {
      "items": {
          "properties": {
              "note": { "type": "string", "blank": True },
              "url": { "format": "uri", "type": "string" }
          },
          "type": "object"
      },
      "type": "array"
  }
  
  
  sources = {
      "items": {
          "properties": {
              "url": { "type": "string" },
              "note": { "type": "string", "blank": True }
          },
          "type": "object"
      },
      "minItems": 1,
      "type": "array"
  }
  
  extras = {
      "type": "object",
  }
  
subject: Update common.py