Baking Normal Map

For baking Normal Map, Type property inside the Shader Graph Baker node must be set to the Normal and the Input slot should be connected to a node containing normals in the tangent space. For example on the image below, Normal From Height node is used for converting the grayscale value of the Voronoi node into the tangent space normal, which later can be baked into a texture.

Normal baking requires a Vector3 type slot for Input.