ParseOp returns an operator from its string representation.

Append appends an element, even if already present.

Equal tests if the current value of the key is equal to the keyop.T value.

Exist tests the existance of a key.

Greater tests if the current value of the key is greater to the keyop.T value.

GreaterOrEqual tests if the current value of the key is greater or equal to the keyop.T value.

Insert adds an element at the position specified by Index.

Invalid is for invalid operator.

Lesser tests if the current value of the key is lesser to the keyop.T value.

LesserOrEqual tests if the current value of the key is lesser or equal to the keyop.T value.

Merge adds an element if not present, do nothing if present.

NotEqual tests if the current value of the key is not equal to the keyop.T value.

Remove removes an element if present, do nothing if not present.

Set overwrites the value.

Toggle adds an element if not present, removes it if present.