A configuration key
Converts a value of this key to a sequence of strings
Such a sequence can be printed in the console, and converted back to a T with fromString.
Reads a value of this key from a sequence of string
Key name, such as "b" in "foo.a.b"
Try to parse a value of this key
Key prefix, such as "foo.a" in "foo.a.b"
Converts a value of this key to JSON
UTF-8 encoded JSON
The fully qualified name of this key
Whether this key corresponds to a password (see Key.PasswordEntry)