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# DepthNSDictionary
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A description of this package.
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Extension to navigate a nested dictionary using separator to search nested keys in a recursive implementation
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## Usage
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```swift
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let nested_dict: NSDictionary = ["a": 1, "b": ["c": 2, "d": 3], "e": 5]
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let param_a = nested_dict.dfs(forKey: "a") as! Int
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let param_d = nested_dict.dfs(forKey: "b__d") as! Int
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let isNil = nested_dict.dfs(forKey: "dog__cat") // it's nil
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```
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