This class represents the parameters used for calling the method SendMessage on the
Amazon Simple Queue Service service. Use the attributes of this class
as arguments to method SendMessage.
You shoulnt make instances of this class. Each attribute should be used as a named argument in the call to SendMessage.
As an example:
$service_obj->SendMessage(Att1 => $value1, Att2 => $value2, ...);
Values for attributes that are native types (Int, String, Float, etc) can passed as-is (scalar values). Values for complex Types (objects) can be passed as a HashRef. The keys and values of the hashref will be used to instance the underlying object.