What's Changed

• Fix: Use static by @localheinz in https://github.com/nicmart/Tree/pull/149
• Fix: Add return type declaration by @localheinz in https://github.com/nicmart/Tree/pull/150
• Fix: Add parameter type declarations by @localheinz in https://github.com/nicmart/Tree/pull/151
• Fix: Add property type declarations by @localheinz in https://github.com/nicmart/Tree/pull/152
• Fix: Return empty array from getNeighbors() when node is root by @localheinz in https://github.com/nicmart/Tree/pull/153
• Fix: Return array with node from getNeighborsAndSelf() when node is root by @localheinz in https://github.com/nicmart/Tree/pull/154
• Enhancement: Run mutation tests with infection/infection by @localheinz in https://github.com/nicmart/Tree/pull/155

Full Changelog: https://github.com/nicmart/Tree/compare/0.6.0...0.7.0