@type t() :: %PolarExpress.Schemas.CustomFieldCreateCheckbox{
  metadata:
    %{
      required(String.t()) => String.t() | integer() | float() | boolean() | nil
    }
    | nil,
  name: String.t() | nil,
  organization_id: String.t() | nil,
  properties: PolarExpress.Schemas.CustomFieldCheckboxProperties.t() | nil,
  slug: String.t() | nil,
  type: String.t() | nil
}

• metadata - Key-value object allowing you to store additional information.

The key must be a string with a maximum length of 40 characters. The value must be either:

• A string with a maximum length of 500 characters
• An integer
• A floating-point number
• A boolean

You can store up to 50 key-value pairs.

• name - Name of the custom field.
• organization_id - The ID of the organization owning the custom field. Required unless you use an organization token. Nullable.
• properties
• slug - Identifier of the custom field. It'll be used as key when storing the value. Must be unique across the organization.It can only contain ASCII letters, numbers and hyphens.
• type