PySNMP: Protocol: API: Alpha: v1 Trap PDU API methods

### Alpha API to v1 Trap PDU objects

Alpha API implements the following API methods to the Trap PDU objects.

apiAlphaGetEnterprise()

  Returns a reference to Enterprise object.

apiAlphaSetEnterprise(value)

  Stores value as Enterprise at PDU where value is either an Enterprise object or a value suitable for Enterprise object initialization.

apiAlphaGetAgentAddr()

  Returns a reference to IpAddress object representing AgentAddr at PDU.

apiAlphaSetAgentAddr(value)

  Stores value as AgentAddr at PDU where value is either a IpAddress object or an IP address value suitable for IpAddress initialization.

apiAlphaGetGenericTrap()

  Returns a reference to GenericTrap object.

apiAlphaSetGenericTrap(value)

  Stores value as GenericTrap at PDU where value is either a GenericTrap object or a value suitable for GenericTrap object initialization.

apiAlphaGetSpecificTrap()

  Returns a reference to SpecificTrap object.

apiAlphaSetSpecificTrap(value)

  Stores value as SpecificTrap at PDU where value is either a SpecificTrap object or a value suitable for SpecificTrap object initialization.

apiAlphaGetTimeStamp()

  Returns a reference to TimeStamp object.

apiAlphaSetTimeStamp(value)

  Stores value as TimeStamp at PDU, where value is either a TimeStamp object or a value suitable for TimeStamp initialization.