usps: United States Postal Service API Interface

utils::globalVariables(c(
  # ---- Zones ---- #
  "MailService",
  "ZipCodes",
  "Zone",
  # ---- Ours re: zones ---- #
  "dest_zip",
  "dest_zip_end",
  "dest_zip_start",
  "has_five_digit_exceptions",
  "houser",
  "modifier_plus",
  "modifier_star",
  "origin_zip",
  "same_ndc",
  "specific_to_priority_mail",
  "zone",
  # ---- Mail ---- #
  "cn_s_price",
  "click_n_ship_price",
  "delivery_day",
  "delivery_option",
  "DeliveryOptions",
  "dimensions",
  "name",
  "postage_service_id",
  "retail_price",
  "title",
  "type",
  # ---- Ours re: mail ---- #
  "delivery_by_time",
  "delivery_date",
  "delivery_duration",
  "shipping_date",
  "shipping_time"
))