simple matcher

_: The “don’t care” matcher. Matches any value.
Eq(value): Matches a value that is equal to the specified value.
Ne(value): Matches a value that is not equal to the specified value.
Gt(value): Matches a value that is greater than the specified value.
Lt(value): Matches a value that is less than the specified value.
Ge(value): Matches a value that is greater than or equal to the specified value.
Le(value): Matches a value that is less than or equal to the specified value.
StrEq(string): Matches a string that is equal to the specified string.
StrNe(string): Matches a string that is not equal to the specified string.

Combining Matchers

AllOf(m1, m2, …, mn): argument matches all of the matchers m1 to mn
AnyOf(m1, m2, …, mn): argument matches at least one of the matchers m1 to mn
Not(m): argument doesn’t match matcher m
Conditional(cond, m1, m2): Matches matcher m1 if cond evaluates to true, else matches m2