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transform_values 

        # Hash.transform_values

(from ruby core)
---
    hash.transform_values {|value| ... } -> new_hash
    hash.transform_values -> new_enumerator

---

Returns a new Hash object; each entry has:
*   A key from `self`.
*   A value provided by the block.


Transform values:
    h = {foo: 0, bar: 1, baz: 2}
    h1 = h.transform_values {|value| value * 100}
    h1 # => {:foo=>0, :bar=>100, :baz=>200}

Returns a new Enumerator if no block given:
    h = {foo: 0, bar: 1, baz: 2}
    e = h.transform_values # => #<Enumerator: {:foo=>0, :bar=>1, :baz=>2}:transform_values>
    h1 = e.each { |value| value * 100}
    h1 # => {:foo=>0, :bar=>100, :baz=>200}

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