Filtering operator. Available choices depend on attribute type.

number operators: eq, neq, gt, gte, lt, lte.

string operators: eq, neq, contains, not_contains, icontains, not_icontains, starts_with, ends_with, matches, not_matches.

ipv4 operators: eq, neq, gt, gte, lt, lte.

ipv6 operators: eq, neq, gt, gte, lt, lte.

bool operators: eq, neq.

int operators: eq, neq, gt, gte, lt, lte.

uuid operators: eq, neq.

hex operators: eq, neq.

relative time operators: before_last in_the_last in_the_next after_next

absolute time operators: earlier_than later_than