fix sampling_rule default values

Author: jj22ee

aws-opentelemetry-distro/src/amazon/opentelemetry/distro/sampler/_sampling_rule.py

@@ -22,15 +22,16 @@ def __init__(
         Version=None,
     ):
         self.Attributes = Attributes if Attributes is not None else {}
-        self.FixedRate = FixedRate if FixedRate is not None else ""
+        self.FixedRate = FixedRate if FixedRate is not None else 0.0
         self.HTTPMethod = HTTPMethod if HTTPMethod is not None else ""
         self.Host = Host if Host is not None else ""
-        self.Priority = Priority if Priority is not None else ""
-        self.ReservoirSize = ReservoirSize if ReservoirSize is not None else ""
+        # Default to value with lower priority than default rule
+        self.Priority = Priority if Priority is not None else 10001
+        self.ReservoirSize = ReservoirSize if ReservoirSize is not None else 0
         self.ResourceARN = ResourceARN if ResourceARN is not None else ""
         self.RuleARN = RuleARN if RuleARN is not None else ""
         self.RuleName = RuleName if RuleName is not None else ""
         self.ServiceName = ServiceName if ServiceName is not None else ""
         self.ServiceType = ServiceType if ServiceType is not None else ""
         self.URLPath = URLPath if URLPath is not None else ""
-        self.Version = Version if Version is not None else ""
+        self.Version = Version if Version is not None else 0