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Add an SOS constraint to the model. Please refer to the SOS Constraints section in the Reference Manual for additional details.

GRBSOS addSOS ( GRBVar[] vars,
    double[] weights,
    int type )

    vars: Array of variables that participate in the SOS constraint.

    weights: Weights for the variables in the SOS constraint.

    type: SOS type (can be GRB.SOS_TYPE1 or GRB.SOS_TYPE2).

    Return value:

    New SOS constraint.

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