Gas

[G-01] State variables only set in the constructor should be declared immutable

Summary

Variables that are assigned values only during the construction phase and remain unchanged thereafter should be designated as immutable. This adjustment bypasses the costly storage-writing activity during the constructor execution, which consumes about 20,000 gas per variable. Additionally, it replaces the high-priced storage-reading operations, costing around 2,100 gas per read, with a far more economical value reading operation that only expends 3 gas.

Before:

After: