# Functions
New creates a new PodNetworkMap.
# Variables
ErrPodNotFound means operate pod may be deleted(almostly).
ErrPodNotRunning means operate pod may be not working and it's non-sense to make changes on it.
# Structs
Append adds an item to corresponding list in podnetworkchaos.
Clear removes all resources with the same source.
CommitResponse is a tuple (Key, Err).
PodNetworkManager will save all the related podnetworkchaos.
PodNetworkTransaction represents a modification on podnetwork.
# Interfaces
Step represents a step of PodNetworkTransaction.