Make isFeasible abstract?

[fgfuchs]

Make it an abstract function?

QAOA/qaoa/problems/base_problem.py

Lines 125 to 139 in 4d21272

	def isFeasible(self, string):
	"""
	Check if a solution string is feasible.
	This method provides a default implementation that always returns True.
	Subclasses can override this method to implement custom feasibility checks.
	Args:
	string (str): A solution string or configuration to check.
	Returns:
	bool: True if the solution is feasible; otherwise, False.
	"""
	return True