aries_cloudagent.messaging.decorators package

Submodules

aries_cloudagent.messaging.decorators.attach_decorator module

A message decorator for attachments.

An attach decorator embeds content or specifies appended content.

class aries_cloudagent.messaging.decorators.attach_decorator.AttachDecorator(*, ident: str = None, description: str = None, filename: str = None, mime_type: str = None, lastmod_time: str = None, byte_count: int = None, data: aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorData, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Class representing attach decorator.

class Meta

Bases: object

AttachDecorator metadata.

schema_class = 'AttachDecoratorSchema'

classmethod from_indy_dict(indy_dict: dict, *, ident: str = None, description: str = None, filename: str = None, lastmod_time: str = None, byte_count: int = None)

Create AttachDecorator instance from indy object (dict).

Given indy object (dict), JSON dump, base64-encode, and embed it as data; mark application/json MIME type.

Parameters:

• indy_dict – indy (dict) data structure
• ident – optional attachment identifier (default random UUID4)
• description – optional attachment description
• filename – optional attachment filename
• lastmod_time – optional attachment last modification time
• byte_count – optional attachment byte count

indy_dict

Return indy data structure encoded in attachment.

Returns: dict with indy object in data attachment

class aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorData(*, jws_: aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorDataJWS = None, sha256_: str = None, links_: Union[list, str] = None, base64_: str = None, json_: str = None)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Attach decorator data.

class Meta

Bases: object

AttachDecoratorData metadata.

schema_class = 'AttachDecoratorDataSchema'

base64

Accessor for base64 decorator data, or None.

header_map(idx: int = 0, jose: bool = True) → Mapping[KT, VT_co]

Accessor for header info at input index, default 0 or unique for singly-signed.

Parameters:

• idx – index of interest, zero-based (default 0)
• jose – True to return unprotected header attributes, False for protected only

json

Accessor for json decorator data, or None.

jws

Accessor for JWS, or None.

links

Accessor for links decorator data, or None.

sha256

Accessor for sha256 decorator data, or None.

sign(verkeys: Union[str, Sequence[str]], wallet: aries_cloudagent.wallet.base.BaseWallet)

Sign base64 data value of attachment.

Parameters:

• verkeys – verkey(s) of the signing party (in raw or DID key format)
• wallet – The wallet to use for the signature

signatures

Accessor for number of signatures.

signed

Accessor for signed content (payload), None for unsigned.

verify(wallet: aries_cloudagent.wallet.base.BaseWallet) → bool

Verify the signature(s).

Parameters:wallet – Wallet to use to verify signature Returns:True if verification succeeds else False

class aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorData1JWS(*, header: aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorDataJWSHeader, protected: str = None, signature: str)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Single Detached JSON Web Signature for inclusion in attach decorator data.

class Meta

Bases: object

AttachDecoratorData1JWS metadata.

schema_class = 'AttachDecoratorData1JWSSchema'

class aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorData1JWSSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

Single attach decorator data JWS schema.

class Meta

Bases: object

Single attach decorator data JWS schema metadata.

model_class

alias of AttachDecoratorData1JWS

header = <fields.Nested(default=<marshmallow.missing>, attribute=None, validate=None, required=True, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'type': 'Invalid type.'})>

protected = <fields.String(default=<marshmallow.missing>, attribute=None, validate=<aries_cloudagent.messaging.valid.Base64URLNoPad object>, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

signature = <fields.String(default=<marshmallow.missing>, attribute=None, validate=<aries_cloudagent.messaging.valid.Base64URLNoPad object>, required=True, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

class aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorDataJWS(*, header: aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorDataJWSHeader = None, protected: str = None, signature: str = None, signatures: Sequence[aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorData1JWS] = None)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Detached JSON Web Signature for inclusion in attach decorator data.

May hold one signature in flattened format, or multiple signatures in the “signatures” member.

class Meta

Bases: object

AttachDecoratorDataJWS metadata.

schema_class = 'AttachDecoratorDataJWSSchema'

class aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorDataJWSHeader(kid: str)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Attach decorator data JWS header.

class Meta

Bases: object

AttachDecoratorDataJWS metadata.

schema_class = 'AttachDecoratorDataJWSHeaderSchema'

class aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorDataJWSHeaderSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

Attach decorator data JWS header schema.

class Meta

Bases: object

Attach decorator data schema metadata.

model_class

alias of AttachDecoratorDataJWSHeader

kid = <fields.String(default=<marshmallow.missing>, attribute=None, validate=<aries_cloudagent.messaging.valid.JWSHeaderKid object>, required=True, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

class aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorDataJWSSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

Schema for detached JSON Web Signature for inclusion in attach decorator data.

class Meta

Bases: object

Metadata for schema for detached JWS for inclusion in attach deco data.

model_class

alias of AttachDecoratorDataJWS

header = <fields.Nested(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'type': 'Invalid type.'})>

protected = <fields.String(default=<marshmallow.missing>, attribute=None, validate=<aries_cloudagent.messaging.valid.Base64URLNoPad object>, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

signature = <fields.String(default=<marshmallow.missing>, attribute=None, validate=<aries_cloudagent.messaging.valid.Base64URLNoPad object>, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

signatures = <fields.List(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid list.'})>

validate_single_xor_multi_sig(data: Mapping[KT, VT_co], **kwargs)

Ensure model is for either 1 or many sigatures, not mishmash of both.

class aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorDataSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

Attach decorator data schema.

class Meta

Bases: object

Attach decorator data schema metadata.

model_class

alias of AttachDecoratorData

base64_ = <fields.String(default=<marshmallow.missing>, attribute=None, validate=<aries_cloudagent.messaging.valid.Base64 object>, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

json_ = <fields.String(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

jws_ = <fields.Nested(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'type': 'Invalid type.'})>

links_ = <fields.List(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid list.'})>

sha256_ = <fields.String(default=<marshmallow.missing>, attribute=None, validate=<aries_cloudagent.messaging.valid.SHA256Hash object>, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

validate_data_spec(data: Mapping[KT, VT_co], **kwargs)

Ensure model chooses exactly one of base64, json, or links.

class aries_cloudagent.messaging.decorators.attach_decorator.AttachDecoratorSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

Attach decorator schema used in serialization/deserialization.

class Meta

Bases: object

AttachDecoratorSchema metadata.

model_class

alias of AttachDecorator

byte_count = <fields.Integer(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid integer.', 'too_large': 'Number too large.'})>

data = <fields.Nested(default=<marshmallow.missing>, attribute=None, validate=None, required=True, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'type': 'Invalid type.'})>

description = <fields.String(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

filename = <fields.String(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

ident = <fields.String(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

lastmod_time = <fields.String(default=<marshmallow.missing>, attribute=None, validate=<aries_cloudagent.messaging.valid.IndyISO8601DateTime object>, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

mime_type = <fields.String(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

aries_cloudagent.messaging.decorators.attach_decorator.did_key(verkey: str) → str

Qualify verkey into DID key if need be.

aries_cloudagent.messaging.decorators.attach_decorator.raw_key(verkey: str) → str

Strip qualified key to raw key if need be.

aries_cloudagent.messaging.decorators.base module

Classes for managing a collection of decorators.

class aries_cloudagent.messaging.decorators.base.BaseDecoratorSet(models: dict = None)

Bases: collections.OrderedDict

Collection of decorators.

add_model(key: str, model: Type[aries_cloudagent.messaging.models.base.BaseModel])

Add a registered decorator model.

copy() → aries_cloudagent.messaging.decorators.base.BaseDecoratorSet

Return a copy of the decorator set.

extract_decorators(message: Mapping[KT, VT_co], schema: Type[<sphinx.ext.autodoc.importer._MockObject object at 0x7f9c17e7ba58>] = None, serialized: bool = True, skip_attrs: Sequence[str] = None) → collections.OrderedDict

Extract decorators and return the remaining properties.

field(name: str) → aries_cloudagent.messaging.decorators.base.BaseDecoratorSet

Access a named decorated field.

fields

Acessor for the set of currently defined fields.

has_field(name: str) → bool

Check for the existence of a named decorator field.

load_decorator(key: str, value, serialized=False)

Convert a decorator value to its loaded representation.

models

Accessor for the models dictionary.

prefix

Accessor for the decorator prefix.

remove_field(name: str)

Remove a named decorated field.

remove_model(key: str)

Remove a registered decorator model.

to_dict(prefix: str = None) → collections.OrderedDict

Convert to a dictionary (serialize).

Raises:BaseModelError – on decorator validation errors

exception aries_cloudagent.messaging.decorators.base.DecoratorError(*args, error_code: str = None, **kwargs)

Bases: aries_cloudagent.core.error.BaseError

Base error for decorator issues.

aries_cloudagent.messaging.decorators.default module

Default decorator set implementation.

class aries_cloudagent.messaging.decorators.default.DecoratorSet(models: dict = None)

Bases: aries_cloudagent.messaging.decorators.base.BaseDecoratorSet

Default decorator set implementation.

aries_cloudagent.messaging.decorators.localization_decorator module

The localization decorator (~l10n) for message localization information.

class aries_cloudagent.messaging.decorators.localization_decorator.LocalizationDecorator(*, locale: str = None, localizable: Sequence[str] = None, catalogs: Sequence[str] = None)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Class representing the localization decorator.

class Meta

Bases: object

LocalizationDecorator metadata.

schema_class = 'LocalizationDecoratorSchema'

class aries_cloudagent.messaging.decorators.localization_decorator.LocalizationDecoratorSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

Localization decorator schema used in serialization/deserialization.

class Meta

Bases: object

LocalizationDecoratorSchema metadata.

model_class

alias of LocalizationDecorator

catalogs

Used by autodoc_mock_imports.

locale

Used by autodoc_mock_imports.

localizable

Used by autodoc_mock_imports.

aries_cloudagent.messaging.decorators.please_ack_decorator module

The please-ack decorator to request acknowledgement.

class aries_cloudagent.messaging.decorators.please_ack_decorator.PleaseAckDecorator(message_id: str = None, on: Sequence[str] = None)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Class representing the please-ack decorator.

class Meta

Bases: object

PleaseAckDecorator metadata.

schema_class = 'PleaseAckDecoratorSchema'

class aries_cloudagent.messaging.decorators.please_ack_decorator.PleaseAckDecoratorSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

PleaseAck decorator schema used in serialization/deserialization.

class Meta

Bases: object

PleaseAckDecoratorSchema metadata.

model_class

alias of PleaseAckDecorator

message_id = <fields.String(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid string.', 'invalid_utf8': 'Not a valid utf-8 string.'})>

on = <fields.List(default=<marshmallow.missing>, attribute=None, validate=None, required=False, load_only=False, dump_only=False, missing=<marshmallow.missing>, allow_none=False, error_messages={'required': 'Missing data for required field.', 'null': 'Field may not be null.', 'validator_failed': 'Invalid value.', 'invalid': 'Not a valid list.'})>

aries_cloudagent.messaging.decorators.signature_decorator module

Model and schema for working with field signatures within message bodies.

class aries_cloudagent.messaging.decorators.signature_decorator.SignatureDecorator(*, signature_type: str = None, signature: str = None, sig_data: str = None, signer: str = None)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Class representing a field value signed by a known verkey.

class Meta

Bases: object

SignatureDecorator metadata.

schema_class = 'SignatureDecoratorSchema'

TYPE_ED25519SHA512 = 'did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/signature/1.0/ed25519Sha512_single'

classmethod create(value, signer: str, wallet: aries_cloudagent.wallet.base.BaseWallet, timestamp=None) → aries_cloudagent.messaging.decorators.signature_decorator.SignatureDecorator

Create a Signature.

Sign a field value and return a newly constructed SignatureDecorator representing the resulting signature.

Parameters:

• value – Value to sign
• signer – Verkey of the signing party
• wallet – The wallet to use for the signature

Returns:

The created SignatureDecorator object

decode() -> (<class 'object'>, <class 'int'>)

Decode the signature to its timestamp and value.

Returns:A tuple of (decoded message, timestamp)

verify(wallet: aries_cloudagent.wallet.base.BaseWallet) → bool

Verify the signature against the signer’s public key.

Parameters:wallet – Wallet to use to verify signature Returns:True if verification succeeds else False

class aries_cloudagent.messaging.decorators.signature_decorator.SignatureDecoratorSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

SignatureDecorator schema.

class Meta

Bases: object

SignatureDecoratorSchema metadata.

model_class

alias of SignatureDecorator

sig_data

Used by autodoc_mock_imports.

signature

Used by autodoc_mock_imports.

signature_type

Used by autodoc_mock_imports.

signer

Used by autodoc_mock_imports.

aries_cloudagent.messaging.decorators.thread_decorator module

A message decorator for threads.

A thread decorator identifies a message that may require additional context from previous messages.

class aries_cloudagent.messaging.decorators.thread_decorator.ThreadDecorator(*, thid: str = None, pthid: str = None, sender_order: int = None, received_orders: Mapping[KT, VT_co] = None)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Class representing thread decorator.

class Meta

Bases: object

ThreadDecorator metadata.

schema_class = 'ThreadDecoratorSchema'

pthid

Accessor for parent thread identifier.

Returns:This thread’s pthid

received_orders

Get received orders.

Returns:The highest sender_order value that the sender has seen from other sender(s) on the thread.

sender_order

Get sender order.

Returns:A number that tells where this message fits in the sequence of all messages that the current sender has contributed to this thread

thid

Accessor for thread identifier.

Returns:This thread’s thid

class aries_cloudagent.messaging.decorators.thread_decorator.ThreadDecoratorSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

Thread decorator schema used in serialization/deserialization.

class Meta

Bases: object

ThreadDecoratorSchema metadata.

model_class

alias of ThreadDecorator

pthid

Used by autodoc_mock_imports.

received_orders

Used by autodoc_mock_imports.

sender_order

Used by autodoc_mock_imports.

thid

Used by autodoc_mock_imports.

aries_cloudagent.messaging.decorators.timing_decorator module

The timing decorator (~timing).

This decorator allows the timing of agent messages to be communicated and constrained.

class aries_cloudagent.messaging.decorators.timing_decorator.TimingDecorator(*, in_time: Union[str, datetime.datetime] = None, out_time: Union[str, datetime.datetime] = None, stale_time: Union[str, datetime.datetime] = None, expires_time: Union[str, datetime.datetime] = None, delay_milli: int = None, wait_until_time: Union[str, datetime.datetime] = None)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Class representing the timing decorator.

class Meta

Bases: object

TimingDecorator metadata.

schema_class = 'TimingDecoratorSchema'

class aries_cloudagent.messaging.decorators.timing_decorator.TimingDecoratorSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

Timing decorator schema used in serialization/deserialization.

class Meta

Bases: object

TimingDecoratorSchema metadata.

model_class

alias of TimingDecorator

delay_milli

Used by autodoc_mock_imports.

expires_time

Used by autodoc_mock_imports.

in_time

Used by autodoc_mock_imports.

out_time

Used by autodoc_mock_imports.

stale_time

Used by autodoc_mock_imports.

wait_until_time

Used by autodoc_mock_imports.

aries_cloudagent.messaging.decorators.transport_decorator module

The transport decorator (~transport).

This decorator allows changes to agent response behaviour and queue status updates.

class aries_cloudagent.messaging.decorators.transport_decorator.TransportDecorator(*, return_route: str = None, return_route_thread: str = None, queued_message_count: int = None)

Bases: aries_cloudagent.messaging.models.base.BaseModel

Class representing the transport decorator.

class Meta

Bases: object

TransportDecorator metadata.

schema_class = 'TransportDecoratorSchema'

class aries_cloudagent.messaging.decorators.transport_decorator.TransportDecoratorSchema(*args, **kwargs)

Bases: aries_cloudagent.messaging.models.base.BaseModelSchema

Transport decorator schema used in serialization/deserialization.

class Meta

Bases: object

TransportDecoratorSchema metadata.

model_class

alias of TransportDecorator

queued_message_count

Used by autodoc_mock_imports.

return_route

Used by autodoc_mock_imports.

return_route_thread

Used by autodoc_mock_imports.