JSON Schema

PipelineConfig

Field	Type	Label	Description
version	uint32
plumr_config	plumr.protobuf.Config
meta	Meta
kpis	Kpis	optional
variables	Variable	repeated

LogConfig

Field	Type	Label	Description
default_level	nanoping.logging.Level
log_filters	plumr.protobuf.LogFilter	repeated

Variable

Field	Type	Label	Description
id	string
label	string
description	string
paths	string	repeated

DataRate

Field	Type	Label	Description
goodput_expression	string
overhead_expression	string
type	DataRateType	optional

DecoratedText

Field	Type	Label	Description
text	string
color	string	optional

Gauge

Field	Type	Label	Description
expression	string

KpiMetric

Field	Type	Label	Description
label	string
value_over_time	ValueOverTime
value	Value
gauge	Gauge
data_rate	DataRate
value_over_time_comparison	ValueOverTimeComparison
value_to_text	ValueToText
value_to_text_conditions	ValueToTextConditions
multiple_values_over_time	MultipleValuesOverTime
multiple_values	MultipleValues
description	string
id	string
column_span	int32	optional

Kpis

Field	Type	Label	Description
variables	Kpis.VariablesEntry	repeated
metrics	KpiMetric	repeated

Kpis.VariablesEntry

Field	Type	Label	Description
key	string
value	string

MultipleValues

Field	Type	Label	Description
unit	string	optional
values	MultipleValuesItem	repeated

MultipleValuesItem

Field	Type	Label	Description
expression	string
label	string
description	string	optional
color	string	optional

MultipleValuesOverTime

Field	Type	Label	Description
unit	string	optional
values	MultipleValuesOverTimeItem	repeated
graph_type	MultipleValuesOverTimeGraphType	optional

MultipleValuesOverTimeItem

Field	Type	Label	Description
expression	string
label	string
description	string	optional
color	string	optional

Value

Field	Type	Label	Description
expression	string
unit	string	optional

ValueOverTime

Field	Type	Label	Description
expression	string
unit	string	optional
min_expression	string	optional
max_expression	string	optional
avg_expression	string	optional

ValueOverTimeComparison

Field	Type	Label	Description
value1_expression	string
value2_expression	string
unit	string	optional
value1_text	string	optional
value2_text	string	optional
value1_min_expression	string	optional
value2_min_expression	string	optional
value1_max_expression	string	optional
value2_max_expression	string	optional
value1_avg_expression	string	optional
value2_avg_expression	string	optional

ValueToText

Field	Type	Label	Description
expression	string
mapping	ValueToText.MappingEntry	repeated

ValueToText.MappingEntry

Field	Type	Label	Description
key	string
value	DecoratedText

ValueToTextCondition

Field	Type	Label	Description
expression	string
text	string
color	string	optional

ValueToTextConditions

Field	Type	Label	Description
conditions	ValueToTextCondition	repeated

DataRateType

Name	Number	Description
TOTAL	0
RATE	1

MultipleValuesOverTimeGraphType

Name	Number	Description
AREA_STACK	0
LINE	1

DisplayCoordinates

Field	Type	Label	Description
x	int32
y	int32

Meta

Field	Type	Label	Description
component_display_coordinates	Meta.ComponentDisplayCoordinatesEntry	repeated
component_display_order	Meta.ComponentDisplayOrderEntry	repeated

Meta.ComponentDisplayCoordinatesEntry

Field	Type	Label	Description
key	string
value	DisplayCoordinates

Meta.ComponentDisplayOrderEntry

Field	Type	Label	Description
key	string
value	int32

InterfaceInfo

Information about a network interface.

Field	Type	Label	Description
is_up	bool
mtu	uint32
ips	string	repeated
mac_address	string

InterfaceInfoWrapper

Wrapper for optional InterfaceInfo to support null values in maps.

Field	Type	Label	Description
info	InterfaceInfo	optional

ListRequest

Request the current list of interfaces.

ListResponse

Response containing the current list of interfaces

Field	Type	Label	Description
success	bool
message	string
interfaces	ListResponse.InterfacesEntry	repeated

ListResponse.InterfacesEntry

Field	Type	Label	Description
key	string
value	InterfaceInfoWrapper

LogFilters

Set or change the log filters.

Field	Type	Label	Description
file_log_filters	plumr.protobuf.LogFilter	repeated
shm_log_filters	plumr.protobuf.ShmLogFilter	repeated

RegisterRequest

Request to register to receive pushed updates about interfaces.

Request

Request message that can contain different types of requests.

Field	Type	Label	Description
option	SetOptionRequest
register	RegisterRequest		Register to receive pushed updates about interfaces
start	StartRequest		Start the actual monitor
list	ListRequest		Request the current list of interfaces

Response

Response message indicating success or failure of an operation.

Field	Type	Label	Description
simple	SimpleResponse		Simple success/failure response
list	ListResponse		Response containing the list of interfaces

SetOptionRequest

Request to set various options for the network monitor.

Field	Type	Label	Description
log_filters	LogFilters

SimpleResponse

Simple response for operations that just need success/failure

Field	Type	Label	Description
success	bool
message	string

StartRequest

Request to start the network monitor.

Field	Type	Label	Description
shm_config	plumr.protobuf.ShmConfig	optional

Update

Update message containing interface information.

Field	Type	Label	Description
interfaces	Update.InterfacesEntry	repeated	Map of interface names to their information. If an interface has no info payload, it means it was removed.

Update.InterfacesEntry

Field	Type	Label	Description
key	string
value	InterfaceInfoWrapper

WireMessage

An encapsulation of the various messages sent over the wire.

Field	Type	Label	Description
request	Request
response	Response
update	Update

LossTrackerReceiver

Field	Type	Label	Description
input	string
output	string
sampling_interval_ms	uint32	optional

LossTrackerSender

Field	Type	Label	Description
input	string
output	string

RlncEncoder

Field	Type	Label	Description
input	string
output	string
symbols	int32
repair	int32

CPUConfig

Field	Type	Label	Description
pin	Pin

Config

Pipeline configuration.

Field	Type	Label	Description
pipeline	Config.PipelineEntry	repeated	The components of the pipeline.
shm_config	ShmConfig	optional	Configuration for the shared memory file where the pipelines metrics are stored.
log_filters	LogFilter	repeated	Filters for log messages.
shm_log_filters	ShmLogFilter	repeated	Filters for log messages in shared memory.
lifecycle_handler	LifecycleHandler	optional	Lifecycle handler for the pipeline.
cpu_config	CPUConfig	optional	CPU configuration for the pipeline.

Config.PipelineEntry

Field	Type	Label	Description
key	string
value	component.Component

Deduplicator

Field	Type	Label	Description
ignore_fields	string	repeated	Fields to ignore when deduplicating log messages. Note, the timestamp field is always ignored.
timeout_ms	uint32	optional	Timeout in milliseconds.

LogActions

Field	Type	Label	Description
actions	string	repeated

LogFilter

File log filter for log messages.

Field	Type	Label	Description
level	LogLevel
actions	LogActions
path_filter	string	optional	Path filter to log.
file	string	optional	File to store log in.
mode	LogMode	optional	Mode to log in.
deduplicator	Deduplicator

Pin

Field	Type	Label	Description
performance_mode	bool	optional	The CPU core to run the pipeline on.
core	uint32	optional

ShmConfig

Dump metrics of the pipelines into the shared memory file.

Field	Type	Label	Description
file_path	string		The path of the shared memory file
bytes	int32		The size of the shared memory file in bytes
interval_ms	int32		Interval in milliseconds between writing metrics to the shared memory file.

ShmLogFilter

Shared memory log filter for log messages.

Field	Type	Label	Description
level	LogLevel
actions	LogActions
path_filter	string	optional	Path filter to log.
file	string		The path of the shared memory file
bytes	int32		The size of the shared memory file in bytes
unlink_at_exit	bool	optional	Determines whether the file should be unlinked when the pipeline exits.

LogLevel

Log levels used for filtering log messages.

Name	Number	Description
STATE	0
DEBUG	1
INFO	2
WARN	3
ERROR	4
FATAL	5

LogMode

Name	Number	Description
APPEND	0	Append to the file.
TRUNCATE	1	Truncate the file.

Splitter

Field	Type	Label	Description
input	string
outputs	string	repeated

BoringSSLDecrypt

Field	Type	Label	Description
input	string
output	string
aes_128_gcm_sha_256	Aes128GcmSha256
aes_256_gcm_sha_384	Aes256GcmSha384
chacha20_poly1305_sha_256	Chacha20Poly1305Sha256

UniformTrafficSource

Field	Type	Label	Description
output	string
total_packets	uint32
interval	uint32
min_packet_size	uint32	optional
max_packet_size	uint32	optional
seed	uint32	optional

Tap

Field	Type	Label	Description
input	string
output	string
interface_name	string
ip	string
netmask	string	optional
is_default_route	bool	optional
mtu	uint32	optional

DelayConstant

Field	Type	Label	Description
flows	EmulationFlow	repeated
delay	uint32
jitter	uint32	optional
allow_reordering	bool	optional
seed	int32	optional

BoringSSLPoly1305Checker

Field	Type	Label	Description
input	string
output	string
shared_secret	string

FixedReplication

Raft stream extension for fixed replication repair mode.

Raft

Field	Type	Label	Description
streams	RaftStream	repeated
carriers	RaftCarrier	repeated
max_packet_bytes	uint32	optional

RaftCarrier

Raft carrier responsible for transporting data from the streams

Field	Type	Label	Description
input	string
output	string
carrier_handle	uint32
bandwidth_priority	uint32	optional
max_bandwidth_mbps	uint32	optional
auto_bandwidth_estimation	bool	optional

RaftRealtimeStream

Field	Type	Label	Description
timeout	uint32
jitter_buffer	uint32	optional
extension	RaftRealtimeStreamExtension	optional

RaftRealtimeStreamExtension

Field	Type	Label	Description
fixed_replication	FixedReplication

RaftStream

Raft stream representing incoming data streams to be transmitted.

Field	Type	Label	Description
input	string	optional
output	string	optional
stream_handle	uint32
realtime_stream	RaftRealtimeStream
transit_stream	RaftTransitStream

RaftTransitStream

Field	Type	Label	Description
bonding_delay	uint32

ReedSolomonEncoder

Field	Type	Label	Description
input	string
output	string
symbols	int32
repair	int32

VideoTrafficSource

Field	Type	Label	Description
output	string
fps	uint32
p_frames	uint32
total_packets	uint32
min_packet_size	uint32	optional
max_packet_size	uint32	optional
seed	uint32	optional

DelayDynamic

Field	Type	Label	Description
flows	EmulationFlow	repeated
phases	DelayPhase	repeated
allow_reordering	bool	optional
seed	int32	optional

DelayPhase

Field	Type	Label	Description
duration	uint32
delay	uint32
jitter	uint32	optional

FlowCombiner

Field	Type	Label	Description
inputs	string	repeated
output	string

PeerWriter

Field	Type	Label	Description
input	string
output	string
remote_address	string

Parity2dEncoder

Field	Type	Label	Description
input	string
output	string
columns	int32
rows	int32

Component

A component within the pipeline.

Field	Type	Label	Description
trace_traffic_source	TraceTrafficSource
traffic_sink	TrafficSink
constant_auth_sign	ConstantAuthSign
constant_auth_verify	ConstantAuthVerify
tag_mux	TagMux
tag_demux	TagDemux
rely_encoder	RelyEncoder
rely_decoder	RelyDecoder
tun	Tun
observer	Observer
fragmentizer	Fragmentizer
defragmentizer	Defragmentizer
reed_solomon_encoder	ReedSolomonEncoder
reed_solomon_decoder	ReedSolomonDecoder
uniform_traffic_source	UniformTrafficSource
sporadic_traffic_source	SporadicTrafficSource
video_traffic_source	VideoTrafficSource
parity_2d_encoder	Parity2dEncoder
parity_2d_decoder	Parity2dDecoder
loss_tracker_sender	LossTrackerSender
loss_tracker_receiver	LossTrackerReceiver
latency_tracker_sender	LatencyTrackerSender
latency_tracker_receiver	LatencyTrackerReceiver
raft	Raft
splitter	Splitter
tcp	Tcp
session_writer	SessionWriter
session_reader	SessionReader
tap	Tap
rlnc_encoder	RlncEncoder
rlnc_decoder	RlncDecoder
flow_filter	FlowFilter
flow_combiner	FlowCombiner
simulated_network	SimulatedNetwork
peer_router	PeerRouter
peer_writer	PeerWriter
boringssl_encrypt	BoringSSLEncrypt
boringssl_decrypt	BoringSSLDecrypt
boringssl_poly1305_signer	BoringSSLPoly1305Signer
boringssl_poly1305_checker	BoringSSLPoly1305Checker
udp_local	UdpLocal
udp_remote	UdpRemote
unix_socket	UnixSocket
relay_network_lookup	RelayNetworkLookup
relay_routing_fabric	RelayRoutingFabric
client_id_reader	ClientIDReader
client_id_writer	ClientIDWriter
gate	Gate
bomb	Bomb
delay_constant	DelayConstant
delay_dynamic	DelayDynamic
loss_constant	LossConstant
loss_dynamic	LossDynamic
loss_gilbert_elliot	LossGilbertElliot
bandwidth_limit_constant	BandwidthLimitConstant
bandwidth_limit_dynamic	BandwidthLimitDynamic
bandwidth_tracker	BandwidthTracker
bandwidth_traffic_source	BandwidthTrafficSource
notification_injector	NotificationInjector
rtp_observer	RtpObserver
udp_multicast_sender	UdpMulticastSender
udp_multicast_listener	UdpMulticastListener

RelyDecoder

Field	Type	Label	Description
input	string
output	string
timeout	int32
release_in_order	bool

RelayConfiguration

Field	Type	Label	Description
entry_pipeline	string
endpoints	RelayConfiguration.EndpointsEntry	repeated
routes	RelayConfiguration.RoutesEntry	repeated

RelayConfiguration.EndpointsEntry

Field	Type	Label	Description
key	string
value	RelayEndpoint

RelayConfiguration.RoutesEntry

Field	Type	Label	Description
key	string
value	RelayRoute

RelayEndpoint

Field	Type	Label	Description
pipeline	string
carriers	string	repeated

RelayRoute

Field	Type	Label	Description
endpoints	string	repeated
conmment	string	optional

BandwidthLimitConstant

Field	Type	Label	Description
flows	EmulationFlow	repeated
bandwidth_limit_mbit	double
max_queue_size	uint32	optional

TagDemux

Field	Type	Label	Description
input	string
outputs	TagDemux.TaggedOutput	repeated

TagDemux.TaggedOutput

Field	Type	Label	Description
name	string
tag	int32

Tcp

Field	Type	Label	Description
input	string	optional
output	string	optional
listen_address	string	optional
remote_address	string	optional
application_facing	bool

Tun

Field	Type	Label	Description
input	string
output	string
interface_name	string
ip	string
netmask	string	optional
is_default_route	bool	optional
generic_offload	bool	optional
mtu	uint32	optional

FlowFilter

Field	Type	Label	Description
input	string
match_output	string
mismatch_output	string
filters	FlowFilterFilter	repeated

FlowFilterCondition

Possible filter conditions currently only IPv4 is supported.

Field	Type	Label	Description
layer3_protocol	FlowFilterLayer3ProtocolCondition
layer3_source_ip	string
layer3_destination_ip	string
layer4_source_port	uint32
layer4_destination_port	uint32

FlowFilterFilter

A set of filter conditions that need to match

Field	Type	Label	Description
conditions	FlowFilterCondition	repeated

FlowFilterLayer3ProtocolCondition

Possible transport protocols to match on

Name	Number	Description
TCP	0
UDP	1

LatencyTrackerReceiver

Field	Type	Label	Description
input	string
output	string
sampling_interval_ms	uint32	optional
latency_budget	int32	optional

BandwidthLimitDynamic

Field	Type	Label	Description
flows	EmulationFlow	repeated
phases	BandwidthLimitPhase	repeated
max_queue_size	uint32	optional

BandwidthLimitPhase

Field	Type	Label	Description
duration	uint32
bandwidth_limit_mbit	double

NotificationInjector

Field	Type	Label	Description
flows	EmulationFlow	repeated
notification	Notification	optional

Command

Command to be executed.

Field	Type	Label	Description
cmd	string		Command to execute.
cwd	string	optional	Current working directory for the command.
policy	CommandExecutionPolicy		Policy for executing the command.
timeout	uint32	optional	Timeout for command execution in milliseconds. If not specified will default to 10 sec.
env	Environment	optional	Environment variables for the command.

Environment

Environment variables.

Field	Type	Label	Description
vars	Environment.VarsEntry	repeated	Mapping of environment variable names to their values.

Environment.VarsEntry

Field	Type	Label	Description
key	string
value	string

LifecycleHandler

Handler for lifecycle events.

Field	Type	Label	Description
env	Environment	optional	Global environment variables for lifecycle events.
on_setup	Command	repeated	Commands to execute during setup.
pre_start	Command	repeated	Commands to execute before starting the pipeline.
post_start	Command	repeated	Commands to execute after starting the pipeline.
pre_stop	Command	repeated	Commands to execute before stopping the pipeline.
post_stop	Command	repeated	Commands to execute after stopping the pipeline.

CommandExecutionPolicy

Policies for executing commands.

Name	Number	Description
STOP_ON_ERROR	0	Stop the pipeline if the command fails.
CONTINUE_ON_ERROR	1	Continue executing the pipeline if the command fails.
RUN_IN_BACKGROUND	2	Run the command in the background. If you use this policy in a post_stop command, the process will be killed immediately after launch

Defragmentizer

Field	Type	Label	Description
input	string
output	string

PeerRouter

Field	Type	Label	Description
ingress	PeerRouter.InputOutput
egress	PeerRouter.InputOutput

PeerRouter.InputOutput

Field	Type	Label	Description
input	string
output	string

ClientIDWriter

Field	Type	Label	Description
input	string
output	string
client_id	uint32

BandwidthTracker

Field	Type	Label	Description
input	string
output	string
window_ms	uint32	optional
buckets	uint32	optional

SimulatedNetwork

Field	Type	Label	Description
input	string	optional
output	string	optional
mtu	int32	optional
network_name	string
receivers	string	repeated

EmulationFlow

Field	Type	Label	Description
input	string
output	string

TrafficSink

Field	Type	Label	Description
input	string
mtu	int32
latency_budget	uint32	optional
timeout_ms	uint32	optional

ConstantAuthSign

Field	Type	Label	Description
input	string
output	string
constant	uint64

SessionReader

Field	Type	Label	Description
input	string
output	string

Gate

Field	Type	Label	Description
flows	EmulationFlow	repeated
closed	bool

Observer

Field	Type	Label	Description
input	string
output	string

ReedSolomonDecoder

Field	Type	Label	Description
input	string
output	string

Parity2dDecoder

Field	Type	Label	Description
input	string
output	string

LossDynamic

Field	Type	Label	Description
flows	EmulationFlow	repeated
phases	LossPhase	repeated
seed	int32	optional

LossPhase

Field	Type	Label	Description
duration	uint32
loss_probability	double

Fragmentizer

Field	Type	Label	Description
input	string
output	string
fragment_size	uint32	optional

RelyEncoder

Field	Type	Label	Description
input	string
output	string
timeout	int32
max_payloads	int32
repair_time_window	int32
repair_target_rate	double

SessionWriter

Field	Type	Label	Description
input	string
output	string

BoringSSLEncrypt

Field	Type	Label	Description
input	string
output	string
aes_128_gcm_sha_256	Aes128GcmSha256
aes_256_gcm_sha_384	Aes256GcmSha384
chacha20_poly1305_sha_256	Chacha20Poly1305Sha256

UdpRemote

Field	Type	Label	Description
input	string
output	string	optional
mtu	int32	optional
interface	string	optional
backend	UdpBackend	optional

UdpBackend

Name	Number	Description
GENERIC	0
LINUX_NO_GRO	1
LINUX	2

LossConstant

Field	Type	Label	Description
flows	EmulationFlow	repeated
loss_probability	double
seed	int32	optional

SporadicTrafficSource

Field	Type	Label	Description
output	string
total_packets	uint32
min_packets	uint32
max_packets	uint32
min_idle	uint32
max_idle	uint32
min_packet_size	uint32	optional
max_packet_size	uint32	optional
seed	uint32	optional

BoringSSLPoly1305Signer

Field	Type	Label	Description
input	string
output	string
shared_secret	string

LossGilbertElliot

Field	Type	Label	Description
flows	EmulationFlow	repeated
good_loss_probability	double
bad_loss_probability	double
good_to_bad_probability	double
bad_to_good_probability	double
seed	int32	optional

TraceTrafficSource

Field	Type	Label	Description
output	string
trace_file	string
loops	uint32	optional
loop_delay	uint32	optional
seed	uint32	optional

RelayNetworkLookup

Field	Type	Label	Description
network	RelayNetworkLookup.InputOutput
client	RelayNetworkLookup.InputOutput
client_id	uint32	repeated

RelayNetworkLookup.InputOutput

Field	Type	Label	Description
input	string
output	string

RlncDecoder

Field	Type	Label	Description
input	string
output	string

ConstantAuthVerify

Field	Type	Label	Description
input	string
output	string
constant	uint64

Bomb

Field	Type	Label	Description
delay	uint32
poison	Poison

Poison

Name	Number	Description
NONE	0
VERIFY_FAIL	1
ASSERT_FAIL	2
THROW_EXCEPTION	3
LOG_FATAL	4

UdpLocal

Field	Type	Label	Description
input	string	optional
output	string
mtu	int32	optional
address	string
interface	string	optional
backend	UdpBackend	optional

ClientIDReader

Field	Type	Label	Description
input	string
output	string
client_id	uint32

Aes128GcmSha256

Field	Type	Label	Description
key	string

Aes256GcmSha384

Field	Type	Label	Description
key	string

Chacha20Poly1305Sha256

Field	Type	Label	Description
key	string

UnixSocket

Field	Type	Label	Description
input	string	optional
output	string	optional
mtu	uint32	optional
server	UnixSocketServerOptions
client	UnixSocketClientOptions

UnixSocketClientOptions

Field	Type	Label	Description
server_address	string
bind_address	int32

UnixSocketServerOptions

Field	Type	Label	Description
listen_address	string

BandwidthTrafficSource

Field	Type	Label	Description
output	string
bandwidth_mbit	double
duration_ms	uint32
min_packet_size	uint32	optional
max_packet_size	uint32	optional
seed	uint32	optional

LatencyTrackerSender

Field	Type	Label	Description
input	string
output	string

UdpMulticastListener

Field	Type	Label	Description
output	string
multicast_group	string
interface	string
local_address	string
mtu	int32	optional

UdpMulticastSender

Field	Type	Label	Description
multicast_ttl	uint32	optional
local_loopback	bool	optional
input	string
interface	string
local_address	string
mtu	int32	optional

RelayRoutingFabric

Field	Type	Label	Description
input	string
output	string
routes	RelayRoutingFabric.RouteEntry	repeated
fabric_type	RelayRoutingFabricType

RelayRoutingFabric.RouteEntry

Field	Type	Label	Description
client_id	uint32
route	string

RelayRoutingFabricType

Name	Number	Description
IP	0

RtpObserver

Field	Type	Label	Description
input	string
output	string
force_offset	int32	optional

TagMux

Field	Type	Label	Description
inputs	TagMux.TaggedInput	repeated
output	string

TagMux.TaggedInput

Field	Type	Label	Description
name	string
tag	int32

Scalar Value Types

.proto Type	Notes	C++	Java	Python	Go	C#	PHP	Ruby
double		double	double	float	float64	double	float	Float
float		float	float	float	float32	float	float	Float
int32	Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
int64	Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead.	int64	long	int/long	int64	long	integer/string	Bignum
uint32	Uses variable-length encoding.	uint32	int	int/long	uint32	uint	integer	Bignum or Fixnum (as required)
uint64	Uses variable-length encoding.	uint64	long	int/long	uint64	ulong	integer/string	Bignum or Fixnum (as required)
sint32	Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
sint64	Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s.	int64	long	int/long	int64	long	integer/string	Bignum
fixed32	Always four bytes. More efficient than uint32 if values are often greater than 2^28.	uint32	int	int	uint32	uint	integer	Bignum or Fixnum (as required)
fixed64	Always eight bytes. More efficient than uint64 if values are often greater than 2^56.	uint64	long	int/long	uint64	ulong	integer/string	Bignum
sfixed32	Always four bytes.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
sfixed64	Always eight bytes.	int64	long	int/long	int64	long	integer/string	Bignum
bool		bool	boolean	boolean	bool	bool	boolean	TrueClass/FalseClass
string	A string must always contain UTF-8 encoded or 7-bit ASCII text.	string	String	str/unicode	string	string	string	String (UTF-8)
bytes	May contain any arbitrary sequence of bytes.	string	ByteString	str	[]byte	ByteString	string	String (ASCII-8BIT)