relationshipToJson function
Converts a Relationship enumeration to a JSON string representation.
This function takes a Relationship enumeration as input and converts it to a JSON
string representation. If the input Relationship is null, the function returns
the JSON string representation of the default relationship Relationship.unknown. Otherwise,
it returns the JSON string representation of the input relationship's name property.
@param relationship The Relationship enumeration to convert to a JSON string. @return A JSON string representation of the input Relationship enumeration.
Implementation
String relationshipToJson(Relationship? relationship) {
return relationship?.value ?? Relationship.unknown.value;
}