Get the long long integer value from the current or the specified node
#include <sys/json.h>
json_decoder_error_t json_decoder_get_int_ll(json_decoder_t *decoder,
const char *name,
long long *value,
bool optional);
This function gets the long long integer value from the current node or from the node with the given name, if the decoder is currently positioned in an object. If successful, the decoder will advance its position to the next node in the object or array.