You can use helper functions as needed. Please implement all the methods in Python. THANK YOU

class NetworksSimulator: def pass$\_$to$\_$network$\_$layer$($self$,$ entity, packet$),$ def pass$\_$to$\_$application$\_$layer$($self$,$ entity, data$),$ def start$\_$timer$($self$,$ entity, increment$),$ def stop$\_$timer$($self$,$ entity$)$

class SimulatedEvent$()$:

def $\_\_$init$\_\_($self$)$:

self.evtime $=0$

self.evtype $=$ None

self.eventity $=$ None

self.pkt $=$ None

self.previous$\_$event $=$ None

self.next$\_$event $=$ None

class EventType$($str$,$ Enum$)$:

FROM$\_$APPLICATION$\_$LAYER $=$ "FROM$\_$APPLICATION$\_$LAYER"

FROM$\_$NETWORK$\_$LAYER $=$ "FROM$\_$NETWORK$\_$LAYER"

TIMER$\_$INTERRUPT $=$ "TIMER$\_$INTERRUPT"

CORRUPT$\_$PACKET $=$ "CORRUPT$\_$PACKET"

PACKET$\_$LOSS $=$ "PACKET$\_$LOSS"

class EventEntity$($IntEnum$)$:

A $=0$

B $=1$

class ComplexEncoder$($json$.$JSONEncoder$)$:

def default$($self$,$ obj$)$:

if isinstance$($obj$,$ SimulatedEvent$)$:

obj$\_$dict $=\{$key: str$($obj$.\_\_$dict$\_\_[$key$])$ for key in obj.$\_\_$dict$\_\_\}$

return obj$\_$dict

# Let the base class default method raise the TypeError

return json.JSONEncoder.default$($self$,$ obj$)$