Incorrect TypeScript types: metaField, requestField, responseField

[david-golightly-leapyear]

The README specifies that setting metaField, requestField, and responseField to null merges those fields into the root namespace, but the TypeScript types are specified without null as a possible value for those fields, requiring // @ts-ignore comments to set them to null:

export interface BaseErrorLoggerOptions {
    ...
    metaField?: string; // can only be a string or undefined, cannot be null
    requestField?: string;
    responseField?: string;
    ...
}

Since null and undefined are interpreted differently for these fields, the correct types are:

export interface BaseErrorLoggerOptions {
    ...
    metaField?: string | null;
    requestField?: string | null;
    responseField?: string | null;
    ...
}