presto-parser/src/main/java/io/prestosql/sql/tree/RevokeRoles.java/RevokeRoles/equals
class RevokeRoles:    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        RevokeRoles that = (RevokeRoles) o;
        return adminOptionFor == that.adminOptionFor &&
                Objects.equals(roles, that.roles) &&
                Objects.equals(grantees, that.grantees) &&
                Objects.equals(grantor, that.grantor);
    }