Here is a list of all namespace variables with links to the namespace documentation for each variable:

i : operations_research::sat
InconsistentIndicatorConstraint : operations_research::math_opt
InconsistentSecondOrderConeConstraint : operations_research::math_opt
InconsistentSecondOrderConeConstraintWithExpressionInUpperBound : operations_research::math_opt
InconsistentSecondOrderConeConstraintWithExpressionUnderNorm : operations_research::math_opt
InconsistentVariableBoundsAndLinearConstraint : operations_research::math_opt
InconsistentVariableBoundsAndQuadraticConstraint : operations_research::math_opt
IndicatorConstraintProto_class_data_ : operations_research::math_opt
IndicatorConstraintUpdatesProto_class_data_ : operations_research::math_opt
IndicatorConstraintUpdatesProto_NewConstraintsEntry_DoNotUse_class_data_ : operations_research::math_opt
InfeasibilityInformation_class_data_ : operations_research::pdlp
infeasible : operations_research::math_opt
Int128_class_data_ : operations_research
IntegerVariableProto_class_data_ : operations_research::sat
IntervalConstraintProto_class_data_ : operations_research::sat
IntervalVarAssignment_class_data_ : operations_research
IntVarAssignment_class_data_ : operations_research
InverseConstraintProto_class_data_ : operations_research::sat
is_attr_key_v : operations_research::math_opt
is_element_id_v : operations_research::math_opt
is_key_type_v : operations_research::math_opt
Item_class_data_ : operations_research::packing::vbp
IteratedLocalSearchParameters_class_data_ : operations_research
IterationStats_class_data_ : operations_research::pdlp