You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: base_input.rb
    path of file: ./repos/gitlabhq/lib/gitlab/ci/config/interpolation/inputs
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Gitlab
  module Ci
    class Config
      module Interpolation
        class Inputs
          ##
          # This is a common abstraction for all input types
          class BaseInput
            ArgumentNotValidError 
    
            def initialize(name:, spec:, value:)
              @name = name
              @errors = []

              # Treat minimal spec definition (nil) as a valid hash:
              #   spec:
              #     inputs:
              #       website:
              @spec = spec || {} # specification from input definition
              @value = value     # actual value provided by the user

              validate!
            end