Get InstanceTypes offerings on current location.

This function check all regions to get the AMI filter by its name it will return the first region where the AMI is offered.

GetAMI based on params defined by request In case multiple AMIs it will return the newest.

This function check on all regions for the dedicated host and return the list of hosts matching the request params.

IsAMIOffered checks if an ami based on its Name is offered on a specific region.

Check on all regions which offers the type of instance got one having it.