{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/BillingCustomer",
  "title": "BillingCustomer",
  "description": "Customers can be individuals or organizations that can subscribe to plans and have access to features.",
  "type": "object",
  "properties": {
    "id": {
      "description": "ULID (Universally Unique Lexicographically Sortable Identifier).",
      "type": "string",
      "example": "01G65Z755AFWAKHE12NY0CQ9FH",
      "pattern": "^[0-7][0-9A-HJKMNP-TV-Z]{25}$",
      "readOnly": true,
      "title": "ULID"
    },
    "name": {
      "description": "Display name of the resource.\n\nBetween 1 and 256 characters.",
      "type": "string",
      "maxLength": 256,
      "minLength": 1
    },
    "description": {
      "description": "Optional description of the resource.\n\nMaximum 1024 characters.",
      "type": "string",
      "maxLength": 1024
    },
    "labels": {
      "$ref": "#/components/schemas/Labels"
    },
    "created_at": {
      "description": "An ISO-8601 timestamp representation of entity creation date.",
      "type": "string",
      "format": "date-time",
      "example": "2023-01-01T01:01:01.001Z",
      "readOnly": true,
      "title": "RFC3339 Date-Time"
    },
    "updated_at": {
      "description": "An ISO-8601 timestamp representation of entity last update date.",
      "type": "string",
      "format": "date-time",
      "example": "2023-01-01T01:01:01.001Z",
      "readOnly": true,
      "title": "RFC3339 Date-Time"
    },
    "deleted_at": {
      "description": "An ISO-8601 timestamp representation of entity deletion date.",
      "type": "string",
      "format": "date-time",
      "example": "2023-01-01T01:01:01.001Z",
      "readOnly": true,
      "title": "RFC3339 Date-Time"
    },
    "key": {
      "$ref": "#/components/schemas/ExternalResourceKey"
    },
    "usage_attribution": {
      "description": "Mapping to attribute metered usage to the customer by the event subject.",
      "type": "object",
      "properties": {
        "subject_keys": {
          "description": "The subjects that are attributed to the customer.\nCan be empty when no usage event subjects are associated with the customer.",
          "type": "array",
          "items": {
            "$ref": "#/components/schemas/UsageAttributionSubjectKey"
          },
          "minItems": 0,
          "title": "Subject Keys"
        }
      },
      "required": [
        "subject_keys"
      ],
      "title": "Usage Attribution"
    },
    "primary_email": {
      "description": "The primary email address of the customer.",
      "type": "string",
      "title": "Primary Email"
    },
    "currency": {
      "description": "Currency of the customer.\nUsed for billing, tax and invoicing.",
      "type": "string",
      "example": "USD",
      "maxLength": 3,
      "minLength": 3,
      "pattern": "^[A-Z]{3}$",
      "title": "Currency"
    },
    "billing_address": {
      "description": "The billing address of the customer.\nUsed for tax and invoicing.",
      "type": "object",
      "properties": {
        "country": {
          "description": "Country code in [ISO 3166-1](https://www.iso.org/iso-3166-country-codes.html) alpha-2 format.",
          "type": "string",
          "example": "US",
          "maxLength": 2,
          "minLength": 2,
          "pattern": "^[A-Z]{2}$",
          "title": "Country"
        },
        "postal_code": {
          "description": "Postal code.",
          "type": "string",
          "title": "Postal Code"
        },
        "state": {
          "description": "State or province.",
          "type": "string",
          "title": "State"
        },
        "city": {
          "description": "City.",
          "type": "string",
          "title": "City"
        },
        "line1": {
          "description": "First line of the address.",
          "type": "string",
          "title": "Line 1"
        },
        "line2": {
          "description": "Second line of the address.",
          "type": "string",
          "title": "Line 2"
        },
        "phone_number": {
          "description": "Phone number.",
          "type": "string",
          "title": "Phone Number"
        }
      },
      "title": "Billing Address"
    }
  },
  "required": [
    "id",
    "name",
    "created_at",
    "updated_at",
    "key"
  ]
}