Initializing help system before first use

Problem and solution access

Export the active problem to a file.
Get the activity value of a linear constraint.
Get the solution value of a linear constraint.
Enumerate the list of terms contained in a linear constraint.
Get the row number of a linear constraint.
Get the type of a linear constraint
Get the dual value of a linear constraint.
Get the objective function value.
Get the problem status of a model.
Get the reduced cost value of a variable.
Get the slack value of a linear constraint.
Get the column number of a decision variable.
Get the solution value of a variable.