change_record_sets_opts() :: [
  comment: binary(),
  action: record_action(),
  name: binary(),
  type: record_type(),
  ttl: non_neg_integer(),
  records: [String.t(), ...],
  batch: [record_opts(), ...]
]

create_hosted_zone_opts() :: [
  name: binary(),
  comment: binary(),
  delegation_set: binary(),
  private: boolean(),
  vpc_is: binary(),
  vpc_region: binary()
]

list_hosted_zones_opts() :: [marker: binary(), max_items: 1..100]

list_record_sets_opts() :: [
  identifier: binary(),
  name: binary(),
  type: record_type(),
  max_items: non_neg_integer()
]

record_action() :: [:create | :delete | :upsert]

record_opts() :: [
  action: record_action(),
  name: binary(),
  type: record_type(),
  ttl: integer(),
  records: [String.t(), ...]
]

record_type() :: [
  :a | :aaaa | :cname | :mx | :naptr | :ns | :ptr | :soa | :spf | :srv | :txt
]