Referrals may be accepted via a secure messaging system. To determine the
types of secure messaging systems supported, refer to the identifiers
collection. Callers will need to understand the specific identifier system
used to know that they are able to transmit messages.
Returns the enum constant of this type with the specified name.
The string must match exactly an identifier used to declare an
enum constant in this type. (Extraneous whitespace characters are
not permitted.)
Parameters:
name - the name of the enum constant to be returned.