Fix documentation from #15669 [ci skip]
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@ -57,9 +57,11 @@ class Hash
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end
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alias_method :to_options!, :symbolize_keys!
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# Ensures all the hash's keys are present in the supplied list of <tt>*valid_keys</tt>.
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# Raises an ArgumentError if any unexpected keys are encountered.
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# Note that keys are NOT treated indifferently: strings and symbols will not match each other.
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# Validate all keys in a hash match <tt>*valid_keys</tt>, raising
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# ArgumentError on a mismatch.
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#
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# Note that keys are treated differently than HashWithIndifferentAccess,
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# meaning that string and symbol keys will not match.
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#
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# { name: 'Rob', years: '28' }.assert_valid_keys(:name, :age) # => raises "ArgumentError: Unknown key: :years. Valid keys are: :name, :age"
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# { name: 'Rob', age: '28' }.assert_valid_keys('name', 'age') # => raises "ArgumentError: Unknown key: :name. Valid keys are: 'name', 'age'"
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