The argument must equal value.
The argument must not equal value.
The argument must be less than value (numeric parameters only).
The argument must be less than or equal to value (numeric parameters
only).
The argument must be greater than value (numeric parameters only).
The argument must be greater than or equal to value (numeric parameters
only).
Comparison operator for a ContractParamRestriction. Numeric Solidity types (
uint*/int*) support all six operators;address,bool,bytes*andstringparameters support onlyeqandneq.