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google.appengine.datastore.datastore_query.make_filter

Constructs a FilterPredicate from the given name, op and values.

name A non-empty string, the name of the property to filter.
op One of PropertyFilter._OPERATORS.keys(), the operator to use.
values A supported value, the value to compare against.

if values is a list, a CompositeFilter that uses AND to combine all values, otherwise a PropertyFilter for the single value.

datastore_errors.BadPropertyError if the property name is invalid.
datastore_errors.BadValueError if the property did not validate correctly or the value was an empty list. Other exception types (like OverflowError): if the property value does not meet type-specific criteria.