'Enables a virtual private gateway (VGW) to propagate routes to the
routing tables of an Amazon VPC.
:type route_table_id: str
:param route_table_id: The ID of the routing table.
:type gateway_id: str
:param gateway_id: The ID of the virtual private gateway.
:type dry_run: bool
:param dry_run: Set to True if the operation should not actually run.
:rtype: bool
:return: True if successful'

def enable_vgw_route_propagation(self, route_table_id, gateway_id, dry_run=False):

    params = {'RouteTableId': route_table_id, 'GatewayId': gateway_id}
    if dry_run:
        params['DryRun'] = 'true'
    return self.get_status('EnableVgwRoutePropagation', params)
