feat(train): add new command to interact with aws and train models

vendor/github.com/aws/aws-sdk-go-v2/internal/timeconv/duration.go

@@ -0,0 +1,13 @@
+package timeconv
+
+import "time"
+
+// FloatSecondsDur converts a fractional seconds to duration.
+func FloatSecondsDur(v float64) time.Duration {
+	return time.Duration(v * float64(time.Second))
+}
+
+// DurSecondsFloat converts a duration into fractional seconds.
+func DurSecondsFloat(d time.Duration) float64 {
+	return float64(d) / float64(time.Second)
+}