def auths
      json = client.get("/v1/sys/auth")
      json = json[:data] if json[:data]
      return Hash[*json.map do |k,v|
        [k.to_s.chomp("/").to_sym, Auth.decode(v)]
      end.flatten]
    end
def auths
      json = client.get("/v1/sys/auth")
      json = json[:data] if json[:data]
      return Hash[*json.map do |k,v|
        [k.to_s.chomp("/").to_sym, Auth.decode(v)]
      end.flatten]
    end
List all auths in Vault.

 @example
   Vault.sys.auths #=> {:token => #<Vault::Auth type="token", description="token based credentials">}

 @return [Hash<Symbol, Auth>]