def bounds(self, value: (float, float)):
lower, upper = value
# Validate bounds before setting them.
Reaction._check_bounds(lower, upper)
self.lower_bound = lower
self.upper_bound = upper
def bounds(self, value: (float, float)):
lower, upper = value
# Validate bounds before setting them.
Reaction._check_bounds(lower, upper)
self.lower_bound = lower
self.upper_bound = upper