Update generator to correctly handle int64/uint64 types as fixnum/bignum instead of strings

lib/google/apis/core/base_service.rb

@@ -21,6 +21,7 @@ require 'google/apis/core/upload'
 require 'google/apis/core/download'
 require 'google/apis/options'
 require 'googleauth'
+require 'httpclient'
 
 module Google
   module Apis

lib/google/apis/core/json_representation.rb

@@ -72,6 +72,10 @@ module Google
               options[:render_filter] = ->(value, _doc, *_args) { value.nil? ? nil : Base64.urlsafe_encode64(value) }
               options[:parse_filter] = ->(fragment, _doc, *_args) { Base64.urlsafe_decode64(fragment) }
             end
+            if options[:numeric_string]
+              options[:render_filter] = ->(value, _doc, *_args) { value.nil? ? nil : value.to_s}
+              options[:parse_filter] = ->(fragment, _doc, *_args) { fragment.to_i }
+            end
             if options[:type] == DateTime
               options[:render_filter] = ->(value, _doc, *_args) { value.nil? ? nil : value.is_a?(DateTime) ? value.rfc3339(3) : value.to_s }
               options[:parse_filter] = ->(fragment, _doc, *_args) { DateTime.parse(fragment) }