You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: bpchar_array.go
    path of file: ./repos/tegola/vendor/github.com/jackc/pgtype
    
    the code of the file until where you have to start completion: // Code generated by erb. DO NOT EDIT.

package pgtype

import (
	"database/sql/driver"
	"encoding/binary"
	"fmt"
	"reflect"

	"github.com/jackc/pgio"
)

type BPCharArray struct {
	Elements   []BPChar
	Dimensions []ArrayDimension
	Status     Status
}

func (dst *BPCharArray) Set(src interface{}) error {
	// untyped nil and typed nil interfaces are different
	if src == nil {
		*dst = BPCharArray{Status: Null}
		return nil
	}

	if value, ok := src.(interface{ Get() interface{} }); ok {
		value2 := value.Get()
		if value2 != value {
			return dst.Set(value2)
		}
	}

	// Attempt to match to select common types:
	switch value := src.(type) {

	case []string:
		if value == nil {
			*dst = BPCharArray{Status: Null}
		} else if len(value) == 0 {
			*dst = BPCharArray{Status: Present}
		} else {
			elements := make([]BPChar, len(value))
			for i := range value {
				if err := el
    
func (src BPCharArray) EncodeText(ci *ConnInfo, buf []byte) ([]byte, error) {
	switch src.Status {
	case Null:
		return nil, nil
	case Undefined:
		return nil, errUndefined
	}

	if len(src.Dimensions) == 0 {
		return append(buf, '{', '}'), nil
	}

	buf = EncodeTextArrayDimensions(buf, src.Dimensions)

	// dimElemCounts is the multiples of elements that each array lies on. For
	// example, a single dimension array of length 4 would have a dimElemCounts of
	// [4]. A multi-dimensional array of lengths [3,5,2] would have a
	// dimElemCounts of [30,10,2]. This is used to simplify when to render a '{'
	// or '}'.
	dimElemCounts := make([]int, len(src.Dimensions))
	dimElemCounts[len(src.Dimensions)-1] = int(src.Dimensions[len(src.Dimensions)-1].Length)
	for i := len(src.Dimensions) - 2; i > -1; i-- {
		dimElemCounts[i] = int(src.Dimensions[i].Length) * dimElemCounts[i+1]
	}

	inElemBuf := make([]byte, 0, 32)
	for i, elem := range src.Elements {
		if i > 0 {
			buf = append(buf, ',')
		}

		for _, dec := range dimElemCounts {
			if i%dec == 0 {
				buf = append(buf, '{')
			}
		}

		elemBuf, err := elem.EncodeText(ci, inElemBuf)
		if err != nil {
			return nil, err
		}
		if elemBuf == nil {
			buf = append(buf, `NULL`...)
		} else {
			buf = append(buf, QuoteArrayElementIfNeeded(string(elemBuf))...)
		}

		for _, dec := range dimElemCounts {
			if (i+1)%dec == 0 {
				buf = append(buf, '}')
			}
		}
	}

	return buf, nil
}