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: check_sql.rb
    path of file: ./repos/brakeman/lib/brakeman/checks
    
    the code of the file until where you have to start completion: require 'brakeman/checks/base_check'

#This check tests for 
    
  def check_query_arguments arg
    return unless sexp? arg
    first_arg = arg[1]

    if node_type? arg, :arglist
      if arg.length > 2 and string_interp? first_arg
        # Model.where("blah = ?", blah)
        return check_string_interp first_arg
      else
        arg = first_arg
      end