find a specific child Yaml.Node corresponding to path definition path definition has two mode. default mode is Yaml.FIND_MODE.DOT - child mapping node are separated by dot : - sequence entry must be enclosed in curly brace ex : grandfather.father.son{2}.age
other mode is Yaml.FIND_MODE.DOTSQUARE_BRACKETS - node's key name must be enclosed in square brackets - sequence entry must be enclosed in curly brace ex : [grandfather][father][son]{2}[age]
| path |
the definition to retriew the child node |
| context |
the Yaml.Node context to operate |