IsBloodGroup
Determines whether a given input represents a valid blood group.
This class extends the Function class and provides a method to check if a given input represents a valid blood group. The implementation follows the specified validation rules.
The IsBloodGroup class is meant to be instantiated and used to validate blood groups. It inherits common functionality from the Function base class.
Constructors
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constructor()
Creates an instance of the IsBloodGroup class.