Is Packages

Checks if map has a value.

Checks if object has a value.

Checks if objects have no common keys.

Checks if object has an entry.

Checks if object has a key.

Checks if object has a key.

Checks if object has a subset.

Checks if object has a subset.

Checks if object has a value.

Checks if map has an entry.

Checks if map has an entry.

Checks if lists has a key.

Checks if lists has a subset.

Checks if lists has a value.

Checks if lists has a value.

Checks if lists has a subset.

Check if value is map.

Check if value is 32-bit integer.

Check is value is iterable collection (not string).

To check if provided number is even (test module, don't use!)