Represents a message in a PubSub context.
The channel in which this message was sent.
Syntax: PubSubMessage.channel()
Returns: string
The content of this message.
Syntax: PubSubMessage.content()
Returns: string
The id of this message.
Syntax: PubSubMessage.id()
Returns: string
Any metadata associated to this message.
Syntax: PubSubMessage.meta()
Returns: any
The date and time at which this message was published.
Syntax: PubSubMessage.publishedAt()
Returns: Date