Function objectToMapTransform

objectToMapTransform<
    T extends
        { [k in string
        | number
        | symbol]?: null | Record<string, any> },
    K extends string
    | number
    | symbol,
>(
    propName: K,
): (
    this: T,
) => Map<string, ExtractRecordValue<T[K]>> | Extract<T[K], undefined | null>
Transforms a record object (with string keys and values of type V) into a Map<string, V> (getter).
Type Parameters
- T extends { [k in string | number | symbol]?: null | Record<string, any> }
  Type of the containing object
- K extends string | number | symbol
  Type of the property key in T that will be transformed
Parameters
- propName: K
  The name of the property to transform into a Map
Returns (
this: T,
) => Map<string, ExtractRecordValue<T[K]>> | Extract<T[K], undefined | null>
A function that returns a Map backed by the key-value pairs from the record property