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/**
 json-values is a one-package and zero-dependency library to work with jsons in a declarative and functional way.
 The main exceptions thrown by the library are the following:
 
 the custom unchecked {@link jsonvalues.UserError}, when the client makes a programming error. A suggestion in the message
 to avoid the error is returned.
 the custom unchecked {@link jsonvalues.InternalError}, when something unexpected happens because a developer made a mistake.
 An issue in GitHub must be created
 the checked {@link jsonvalues.MalformedJson}, when a string can not be parsed into a json.
 the unchecked NullPointerException, when a method different than equals receives a null parameter.
 
 All the methods which name ends with an underscore are applied to the whole json recursively, and not only
 to its first level. For example:
  {@code
 x={"a":1, "b":[{"c":1, "d":true}]}
 x.size() = 2  // a and b
 x.size_() = 3 // a, b.0.c and b.0.1
 x.mapKeys(toUppercase)  =  {"A":1, "B":[{"c":1, "d":true}]}
 x.mapAllKeys(toUppercase) =  {"A":1, "B":[{"C":1, "D":true}]}
 }
 
 */
package jsonvalues;