for (int i = 0; i < mappings.length; i++) {
if (mappings[i] != null && args[i] != null) {
builder.put(mappings[i], args[i]);
}
}
return builder.build();
}
/**
* Returns an array indexed by argument index with the value of the @PartitionKey annotation for each argument,
* or null if no arguments are annotated with @PartitionKey.