Optional
disconnectWhen the connection was closed, if it has been closed.
Optional
handshakeWhen Mockttp's handshake for this connection was completed (if there was one). This is not set for passed through connections.
When the socket initially connected, in MS since the unix epoch.
Optional
tunnelWhen the outer tunnel (e.g. a preceeding CONNECT request) was created, if there was one.
When the socket initially connected, equivalent to startTime.
High-precision floating-point monotonically increasing timestamps. Comparable and precise, but not related to specific current time.