pub fn decode(
  json: dynamic.Dynamic,
) -> Result(
  #(tree.Expression(Nil), Nil),
  List(decode.DecodeError),
)

pub fn decoder(
  meta: Nil,
) -> decode.Decoder(#(tree.Expression(Nil), Nil))

pub fn from_block(
  data: BitArray,
) -> Result(#(tree.Expression(Nil), Nil), json.DecodeError)

pub fn to_block(data: #(tree.Expression(a), a)) -> BitArray

pub fn to_data_model(tree: #(tree.Expression(a), a)) -> json.Json

pub fn to_string(data: #(tree.Expression(a), a)) -> String

pub const vacant_cid: v1.Cid