module Pgvector

def self.decode(string)
  if string[0] == "["
    Vector.from_text(string).to_a
  elsif string[0] == "{"
    SparseVector.from_text(string)
  else
    string
  end
end

def self.encode(data)
  if data.is_a?(Vector) || data.is_a?(HalfVector) || data.is_a?(SparseVector)
    data.to_s
  else
    Vector.new(data).to_s
  end
end