class Turbopuffer::Internal::Type::HashOf

def coerce(value, state:)
  exactness = state.fetch(:exactness)
  unless value.is_a?(Hash)
    exactness[:no] += 1
    state[:error] = TypeError.new("#{value.class} can't be coerced into #{Hash}")
    return value
  end
  target = item_type
  exactness[:yes] += 1
  value
    .to_h do |key, val|
      k = key.is_a?(String) ? key.to_sym : key
      v =
        case [nilable?, val]
        in [true, nil]
          exactness[:yes] += 1
          nil
        else
          Turbopuffer::Internal::Type::Converter.coerce(target, val, state: state)
        end
      exactness[:no] += 1 unless k.is_a?(Symbol)
      [k, v]
    end
end