Values:
UNDEFINED_OP (0):
A value indicating that the enum field is not
set.
CONTAINS (215180831):
The operator matches if the field value
contains the specified value.
ENDS_WITH (490402221):
The operator matches if the field value ends
with the specified value.
EQUALS (442201023):
The operator matches if the field value
equals the specified value.
EQUALS_ANY (337226060):
The operator matches if the field value is
any value.
STARTS_WITH (139505652):
The operator matches if the field value
starts with the specified value.