public Struct set(String name, Object value) {
        BoundField field = this.schema.get(name);
        if (field == null)
            throw new SchemaException("Unknown field: " + name);
        this.values[field.index] = value;
        return this;
    }
Set the field specified by the given name to the value

@param name The name of the field
@param value The value to set
@throws SchemaException If the field is not known
clients/src/main/java/org/apache/kafka/common/protocol/types/Struct.java