remove inspect function for easier debugging
use keyword arguments for occurrence search
rename occurred_at to last_occurred_at
reuse find method from occurrence model
refactor delete by query func to use keyword arg
refactor count func to use keyword args
refactor search in es client to use keyword args
rename function find to get
remove all from find method
useless assert at the beginning of the test
rename test
rearange class
add to find the size argument
rename position to from
add argument check for variable from
function to find occurrences since a date
remove unnecessary assert
remove all from method name
move defautl sorting into find method
check if empty