The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'other' of 'bool PersianDateTime.Equals(PersianDateTime other)' doesn't match implicitly implemented member 'bool IEquatable<PersianDateTime>.Equals(PersianDateTime? other)' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'other' of 'int PersianDateTime.CompareTo(PersianDateTime other)' doesn't match implicitly implemented member 'int IComparable<PersianDateTime>.CompareTo(PersianDateTime? other)' (possibly because of nullability attributes).

Possible null reference return.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'other' of 'bool PersianDateTime.Equals(PersianDateTime other)' doesn't match implicitly implemented member 'bool IEquatable<PersianDateTime>.Equals(PersianDateTime? other)' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'other' of 'int PersianDateTime.CompareTo(PersianDateTime other)' doesn't match implicitly implemented member 'int IComparable<PersianDateTime>.CompareTo(PersianDateTime? other)' (possibly because of nullability attributes).