validate

Messages

Message

FieldRules

FieldRules encapsulates the rules for each type of field. Depending on the field, the correct set should be used to ensure proper validations.

Name	Tag	Type	Label	Description
`message`	`17`	`MessageRules`	optional
`float`	`1`	`FloatRules`	optional	Scalar Field Types
`double`	`2`	`DoubleRules`	optional
`int32`	`3`	`Int32Rules`	optional
`int64`	`4`	`Int64Rules`	optional
`uint32`	`5`	`UInt32Rules`	optional
`uint64`	`6`	`UInt64Rules`	optional
`sint32`	`7`	`SInt32Rules`	optional
`sint64`	`8`	`SInt64Rules`	optional
`fixed32`	`9`	`Fixed32Rules`	optional
`fixed64`	`10`	`Fixed64Rules`	optional
`sfixed32`	`11`	`SFixed32Rules`	optional
`sfixed64`	`12`	`SFixed64Rules`	optional
`bool`	`13`	`BoolRules`	optional
`string`	`14`	`StringRules`	optional
`bytes`	`15`	`BytesRules`	optional
`enum`	`16`	`EnumRules`	optional	Complex Field Types
`repeated`	`18`	`RepeatedRules`	optional
`map`	`19`	`MapRules`	optional
`any`	`20`	`AnyRules`	optional	Well-Known Field Types
`duration`	`21`	`DurationRules`	optional
`timestamp`	`22`	`TimestampRules`	optional

Message

FloatRules

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FloatRules describes the constraints applied to float values

Name	Tag	Type	Label	Description
`const`	`1`	`float`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`float`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`float`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`float`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`float`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`float`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`float`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

DoubleRules

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DoubleRules describes the constraints applied to double values

Name	Tag	Type	Label	Description
`const`	`1`	`double`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`double`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`double`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`double`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`double`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`double`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`double`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

Int32Rules

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Int32Rules describes the constraints applied to int32 values

Name	Tag	Type	Label	Description
`const`	`1`	`int32`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`int32`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`int32`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`int32`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`int32`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`int32`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`int32`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

Int64Rules

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Int64Rules describes the constraints applied to int64 values

Name	Tag	Type	Label	Description
`const`	`1`	`int64`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`int64`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`int64`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`int64`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`int64`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`int64`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`int64`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

UInt32Rules

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UInt32Rules describes the constraints applied to uint32 values

Name	Tag	Type	Label	Description
`const`	`1`	`uint32`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`uint32`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`uint32`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`uint32`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`uint32`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`uint32`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`uint32`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

UInt64Rules

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UInt64Rules describes the constraints applied to uint64 values

Name	Tag	Type	Label	Description
`const`	`1`	`uint64`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`uint64`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`uint64`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`uint64`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`uint64`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`uint64`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`uint64`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

SInt32Rules

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SInt32Rules describes the constraints applied to sint32 values

Name	Tag	Type	Label	Description
`const`	`1`	`sint32`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`sint32`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`sint32`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`sint32`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`sint32`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`sint32`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`sint32`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

SInt64Rules

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SInt64Rules describes the constraints applied to sint64 values

Name	Tag	Type	Label	Description
`const`	`1`	`sint64`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`sint64`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`sint64`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`sint64`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`sint64`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`sint64`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`sint64`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

Fixed32Rules

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Fixed32Rules describes the constraints applied to fixed32 values

Name	Tag	Type	Label	Description
`const`	`1`	`fixed32`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`fixed32`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`fixed32`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`fixed32`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`fixed32`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`fixed32`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`fixed32`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

Fixed64Rules

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Fixed64Rules describes the constraints applied to fixed64 values

Name	Tag	Type	Label	Description
`const`	`1`	`fixed64`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`fixed64`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`fixed64`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`fixed64`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`fixed64`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`fixed64`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`fixed64`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

SFixed32Rules

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SFixed32Rules describes the constraints applied to sfixed32 values

Name	Tag	Type	Label	Description
`const`	`1`	`sfixed32`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`sfixed32`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`sfixed32`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`sfixed32`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`sfixed32`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`sfixed32`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`sfixed32`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

SFixed64Rules

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SFixed64Rules describes the constraints applied to sfixed64 values

Name	Tag	Type	Label	Description
`const`	`1`	`sfixed64`	optional	Const specifies that this field must be exactly the specified value
`lt`	`2`	`sfixed64`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`3`	`sfixed64`	optional	Lte specifies that this field must be less than or equal to the specified value, inclusive
`gt`	`4`	`sfixed64`	optional	Gt specifies that this field must be greater than the specified value, exclusive. If the value of Gt is larger than a specified Lt or Lte, the range is reversed.
`gte`	`5`	`sfixed64`	optional	Gte specifies that this field must be greater than or equal to the specified value, inclusive. If the value of Gte is larger than a specified Lt or Lte, the range is reversed.
`in`	`6`	`sfixed64`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`7`	`sfixed64`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ignore_empty`	`8`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

BoolRules

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BoolRules describes the constraints applied to bool values

Name	Tag	Type	Label	Description
`const`	`1`	`bool`	optional	Const specifies that this field must be exactly the specified value

Message

StringRules

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StringRules describe the constraints applied to string values

Name	Tag	Type	Label	Description
`const`	`1`	`string`	optional	Const specifies that this field must be exactly the specified value
`len`	`19`	`uint64`	optional	Len specifies that this field must be the specified number of characters (Unicode code points). Note that the number of characters may differ from the number of bytes in the string.
`min_len`	`2`	`uint64`	optional	MinLen specifies that this field must be the specified number of characters (Unicode code points) at a minimum. Note that the number of characters may differ from the number of bytes in the string.
`max_len`	`3`	`uint64`	optional	MaxLen specifies that this field must be the specified number of characters (Unicode code points) at a maximum. Note that the number of characters may differ from the number of bytes in the string.
`len_bytes`	`20`	`uint64`	optional	LenBytes specifies that this field must be the specified number of bytes
`min_bytes`	`4`	`uint64`	optional	MinBytes specifies that this field must be the specified number of bytes at a minimum
`max_bytes`	`5`	`uint64`	optional	MaxBytes specifies that this field must be the specified number of bytes at a maximum
`pattern`	`6`	`string`	optional	Pattern specifies that this field must match against the specified regular expression (RE2 syntax). The included expression should elide any delimiters.
`prefix`	`7`	`string`	optional	Prefix specifies that this field must have the specified substring at the beginning of the string.
`suffix`	`8`	`string`	optional	Suffix specifies that this field must have the specified substring at the end of the string.
`contains`	`9`	`string`	optional	Contains specifies that this field must have the specified substring anywhere in the string.
`not_contains`	`23`	`string`	optional	NotContains specifies that this field cannot have the specified substring anywhere in the string.
`in`	`10`	`string`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`11`	`string`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`email`	`12`	`bool`	optional	Email specifies that the field must be a valid email address as defined by RFC 5322
`hostname`	`13`	`bool`	optional	Hostname specifies that the field must be a valid hostname as defined by RFC 1034. This constraint does not support internationalized domain names (IDNs).
`ip`	`14`	`bool`	optional	Ip specifies that the field must be a valid IP (v4 or v6) address. Valid IPv6 addresses should not include surrounding square brackets.
`ipv4`	`15`	`bool`	optional	Ipv4 specifies that the field must be a valid IPv4 address.
`ipv6`	`16`	`bool`	optional	Ipv6 specifies that the field must be a valid IPv6 address. Valid IPv6 addresses should not include surrounding square brackets.
`uri`	`17`	`bool`	optional	Uri specifies that the field must be a valid, absolute URI as defined by RFC 3986
`uri_ref`	`18`	`bool`	optional	UriRef specifies that the field must be a valid URI as defined by RFC 3986 and may be relative or absolute.
`address`	`21`	`bool`	optional	Address specifies that the field must be either a valid hostname as defined by RFC 1034 (which does not support internationalized domain names or IDNs), or it can be a valid IP (v4 or v6).
`uuid`	`22`	`bool`	optional	Uuid specifies that the field must be a valid UUID as defined by RFC 4122
`well_known_regex`	`24`	`KnownRegex`	optional	WellKnownRegex specifies a common well known pattern defined as a regex.
`strict`	`25`	`bool`	optional	This applies to regexes HTTP_HEADER_NAME and HTTP_HEADER_VALUE to enable strict header validation. By default, this is true, and HTTP header validations are RFC-compliant. Setting to false will enable a looser validations that only disallows \r\n\0 characters, which can be used to bypass header matching rules.
`ignore_empty`	`26`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

BytesRules

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BytesRules describe the constraints applied to bytes values

Name	Tag	Type	Label	Description
`const`	`1`	`bytes`	optional	Const specifies that this field must be exactly the specified value
`len`	`13`	`uint64`	optional	Len specifies that this field must be the specified number of bytes
`min_len`	`2`	`uint64`	optional	MinLen specifies that this field must be the specified number of bytes at a minimum
`max_len`	`3`	`uint64`	optional	MaxLen specifies that this field must be the specified number of bytes at a maximum
`pattern`	`4`	`string`	optional	Pattern specifies that this field must match against the specified regular expression (RE2 syntax). The included expression should elide any delimiters.
`prefix`	`5`	`bytes`	optional	Prefix specifies that this field must have the specified bytes at the beginning of the string.
`suffix`	`6`	`bytes`	optional	Suffix specifies that this field must have the specified bytes at the end of the string.
`contains`	`7`	`bytes`	optional	Contains specifies that this field must have the specified bytes anywhere in the string.
`in`	`8`	`bytes`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`9`	`bytes`	repeated	NotIn specifies that this field cannot be equal to one of the specified values
`ip`	`10`	`bool`	optional	Ip specifies that the field must be a valid IP (v4 or v6) address in byte format
`ipv4`	`11`	`bool`	optional	Ipv4 specifies that the field must be a valid IPv4 address in byte format
`ipv6`	`12`	`bool`	optional	Ipv6 specifies that the field must be a valid IPv6 address in byte format
`ignore_empty`	`14`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

EnumRules

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EnumRules describe the constraints applied to enum values

Name	Tag	Type	Label	Description
`const`	`1`	`int32`	optional	Const specifies that this field must be exactly the specified value
`defined_only`	`2`	`bool`	optional	DefinedOnly specifies that this field must be only one of the defined values for this enum, failing on any undefined value.
`in`	`3`	`int32`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`4`	`int32`	repeated	NotIn specifies that this field cannot be equal to one of the specified values

Message

MessageRules

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MessageRules describe the constraints applied to embedded message values. For message-type fields, validation is performed recursively.

Name	Tag	Type	Label	Description
`skip`	`1`	`bool`	optional	Skip specifies that the validation rules of this field should not be evaluated
`required`	`2`	`bool`	optional	Required specifies that this field must be set

Message

RepeatedRules

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RepeatedRules describe the constraints applied to repeated values

Name	Tag	Type	Label	Description
`min_items`	`1`	`uint64`	optional	MinItems specifies that this field must have the specified number of items at a minimum
`max_items`	`2`	`uint64`	optional	MaxItems specifies that this field must have the specified number of items at a maximum
`unique`	`3`	`bool`	optional	Unique specifies that all elements in this field must be unique. This constraint is only applicable to scalar and enum types (messages are not supported).
`items`	`4`	`FieldRules`	optional	Items specifies the constraints to be applied to each item in the field. Repeated message fields will still execute validation against each item unless skip is specified here.
`ignore_empty`	`5`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

MapRules

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MapRules describe the constraints applied to map values

Name	Tag	Type	Label	Description
`min_pairs`	`1`	`uint64`	optional	MinPairs specifies that this field must have the specified number of KVs at a minimum
`max_pairs`	`2`	`uint64`	optional	MaxPairs specifies that this field must have the specified number of KVs at a maximum
`no_sparse`	`3`	`bool`	optional	NoSparse specifies values in this field cannot be unset. This only applies to map's with message value types.
`keys`	`4`	`FieldRules`	optional	Keys specifies the constraints to be applied to each key in the field.
`values`	`5`	`FieldRules`	optional	Values specifies the constraints to be applied to the value of each key in the field. Message values will still have their validations evaluated unless skip is specified here.
`ignore_empty`	`6`	`bool`	optional	IgnoreEmpty specifies that the validation rules of this field should be evaluated only if the field is not empty

Message

AnyRules

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AnyRules describe constraints applied exclusively to the google.protobuf.Any well-known type

Name	Tag	Type	Label	Description
`required`	`1`	`bool`	optional	Required specifies that this field must be set
`in`	`2`	`string`	repeated	In specifies that this field's `type_url` must be equal to one of the specified values.
`not_in`	`3`	`string`	repeated	NotIn specifies that this field's `type_url` must not be equal to any of the specified values.

Message

DurationRules

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DurationRules describe the constraints applied exclusively to the google.protobuf.Duration well-known type

Name	Tag	Type	Label	Description
`required`	`1`	`bool`	optional	Required specifies that this field must be set
`const`	`2`	`google.protobuf.Duration`	optional	Const specifies that this field must be exactly the specified value
`lt`	`3`	`google.protobuf.Duration`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`4`	`google.protobuf.Duration`	optional	Lt specifies that this field must be less than the specified value, inclusive
`gt`	`5`	`google.protobuf.Duration`	optional	Gt specifies that this field must be greater than the specified value, exclusive
`gte`	`6`	`google.protobuf.Duration`	optional	Gte specifies that this field must be greater than the specified value, inclusive
`in`	`7`	`google.protobuf.Duration`	repeated	In specifies that this field must be equal to one of the specified values
`not_in`	`8`	`google.protobuf.Duration`	repeated	NotIn specifies that this field cannot be equal to one of the specified values

Message

TimestampRules

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TimestampRules describe the constraints applied exclusively to the google.protobuf.Timestamp well-known type

Name	Tag	Type	Label	Description
`required`	`1`	`bool`	optional	Required specifies that this field must be set
`const`	`2`	`google.protobuf.Timestamp`	optional	Const specifies that this field must be exactly the specified value
`lt`	`3`	`google.protobuf.Timestamp`	optional	Lt specifies that this field must be less than the specified value, exclusive
`lte`	`4`	`google.protobuf.Timestamp`	optional	Lte specifies that this field must be less than the specified value, inclusive
`gt`	`5`	`google.protobuf.Timestamp`	optional	Gt specifies that this field must be greater than the specified value, exclusive
`gte`	`6`	`google.protobuf.Timestamp`	optional	Gte specifies that this field must be greater than the specified value, inclusive
`lt_now`	`7`	`bool`	optional	LtNow specifies that this must be less than the current time. LtNow can only be used with the Within rule.
`gt_now`	`8`	`bool`	optional	GtNow specifies that this must be greater than the current time. GtNow can only be used with the Within rule.
`within`	`9`	`google.protobuf.Duration`	optional	Within specifies that this field must be within this duration of the current time. This constraint can be used alone or with the LtNow and GtNow rules.