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: func_ptr_arg_declaration.rb
    path of file: ./repos/rubex/lib/rubex/ast/expression
    
    the code of the file until where you have to start completion: # Function argument is a function pointer.
module Rubex
  module AST
    module Expression
      class FuncPtrArgDeclaration < ArgDeclaration
        def analyse_types(local_scope, extern: false)
          var, dtype, ident, ptr_level, value = fetch_data
          cfunc_return_type = Helpers.determine_dtype(dtype, ident[:return_ptr_level])
   
    
        def analyse_types(local_scope, extern: false)
          var, dtype, ident, ptr_level, value = fetch_data
          cfunc_return_type = Helpers.determine_dtype(dtype, ident[:return_ptr_level])
          arg_list = ident[:arg_list].analyse_statement(local_scope)
          ptr_level = '*' if ptr_level.empty?
          name = ident[:name]
          c_name = Rubex::ARG_PREFIX + ident[:name]
          @type = Helpers.determine_dtype(
            DataType::CFunction.new(name, c_name, arg_list, cfunc_return_type, nil), ptr_level
          )
          add_arg_to_symbol_table name, c_name, value, extern, local_scope
        end