Blank validator error message is wrong

[pekopekopekopayo]

class HomeController < ApplicationController
  skip_before_action :verify_authenticity_token
  api!
  param :test_hash, Hash
  def create
    render status: :ok, json: { message: 'Hello, World!' }
  end
end

this is my test code

i expect this message
Apipie::ParamInvalid (Invalid parameter 'test_hash' value blank: Must be a Hash):
but error message was wrong
Apipie::ParamInvalid (Invalid parameter 'test_hash' value nil: Must be a Hash):

[pekopekopekopayo]

@ekohl I opened the PR again by my mistake ㅠ_ㅠ