`value` should return "natural" type for argument

[mrmundt]

Summary

This was discussed in our Pyomo 7 planning session on March 20, 2026.

Description

• value() should return "natural" value for argument (bool, float, Quantity)
• {var, constraint}.lb and .ub should return +/-float(inf) and not None
• Remove evaluating expressions / numeric objects using __call__

Additional information