@type t() :: %Sidereon.Terrain.MmapTerrain.TerrainStoreError{
  expected: non_neg_integer() | nil,
  found: non_neg_integer() | nil,
  kind:
    :io
    | :parse
    | :unsupported_version
    | :unsupported_datum
    | :duplicate_tile
    | :checksum,
  lat_index: integer() | nil,
  lon_index: integer() | nil,
  message: String.t() | nil,
  path: String.t() | nil,
  reason: String.t() | nil,
  tag: non_neg_integer() | nil,
  version: non_neg_integer() | nil
}