Get the value starting at root and traversing the given path.This function is valid in v2.23.0. This function has been downloaded 2 times.
rootthat should be traversed.
pathcannot be fully traversed.
opt_defaultwill be returned. Otherwise the value found at
pathwill be returned.
This function directly requires the following function which is included automatically:
This function is directly required by the following function: