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# ->parseYamls()
# ->parseYaml()
# ->mergeConfigValue()
 -  merges values for a given key under a given category
 -  merges values for a given key under a given category
 -  merges values for a given key under a given category
# ->getConfigValue()
 -  returns the value for the key in the given category
 -  returns the value for the key in the given category
 -  returns the value for the key in the  category if the key does not exist in the given category
 -  returns the default value if key is not found in the category and in the  category
# Looks like everything went fine.