Auto-converts PlotLine.value from datetime to numeric. Closes #58

Author: hcpchris

highcharts_core/options/axes/plot_bands.py

@@ -349,6 +349,9 @@ def value(self) -> Optional[int | float | Decimal]:
 
     @value.setter
     def value(self, value):
+        if hasattr(value, 'timestamp'):
+            value = value.timestamp() * 1000
+
         self._value = validators.numeric(value, allow_empty = True)
 
     @property