public Struct instance(Field.ComplexArray field) {
        return instance(schema.get(field.name));
    }
Create a struct instance for the given field which must be a container type (struct or array)

@param field The name of the field to create (field must be a schema type)
@return The struct
@throws SchemaException If the given field is not a container type
clients/src/main/java/org/apache/kafka/common/protocol/types/Struct.java