func (j *AccountUpdateExtensions) MarshalJSONBuf(buf fflib.EncodingBuffer) error {
	if j == nil {
		buf.WriteString("null")
		return nil
	}
	var err error
	var obj []byte
	_ = obj
	_ = err
	buf.WriteString(`{ `)
	if j.NullExt != nil {
		if true {
			buf.WriteString(`"null_ext":`)
			{
				err = j.NullExt.MarshalJSONBuf(buf)
				if err != nil {
					return err
				}
			}
			buf.WriteByte(',')
		}
	}
	if j.OwnerSpecialAuthority != nil {
		if true {
			buf.WriteString(`"owner_special_authority":`)
			{
				obj, err = j.OwnerSpecialAuthority.MarshalJSON()
				if err != nil {
					return err
				}
				buf.Write(obj)
			}
			buf.WriteByte(',')
		}
	}
	if j.ActiveSpecialAuthority != nil {
		if true {
			buf.WriteString(`"active_special_authority":`)
			{
				obj, err = j.ActiveSpecialAuthority.MarshalJSON()
				if err != nil {
					return err
				}
				buf.Write(obj)
			}
			buf.WriteByte(',')
		}
	}
	buf.Rewind(1)
	buf.WriteByte('}')
	return nil
}
MarshalJSONBuf marshal buff to json - template
package types
import (
	"bytes"
	"fmt"
	fflib "github.com/pquerna/ffjson/fflib/v1"
)
func (j *AccountCreateExtensions) MarshalJSON() ([]byte, error) {
	var buf fflib.Buffer
	if j == nil {
		buf.WriteString("null")
		return buf.Bytes(), nil
	}
	err := j.MarshalJSONBuf(&buf)
	if err != nil {
		return nil, err
	}
	return buf.Bytes(), nil
}
func (j *AccountCreateExtensions) MarshalJSONBuf(buf fflib.EncodingBuffer) error {
	if j == nil {
		buf.WriteString("null")
		return nil
	}
	var err error
	var obj []byte
	_ = obj
	_ = err
	buf.WriteString(`{ `)
	if j.NullExt != nil {
		if true {
			buf.WriteString(`"null_ext":`)
			{
				err = j.NullExt.MarshalJSONBuf(buf)
				if err != nil {
					return err
				}
			}
			buf.WriteByte(',')
		}
	}
	if j.OwnerSpecialAuthority != nil {
		if true {
			buf.WriteString(`"owner_special_authority":`)
			{
				obj, err = j.OwnerSpecialAuthority.MarshalJSON()
				if err != nil {
					return err
				}
				buf.Write(obj)
			}
			buf.WriteByte(',')
		}
	}
	if j.ActiveSpecialAuthority != nil {
		if true {
			buf.WriteString(`"active_special_authority":`)
			{
				obj, err = j.ActiveSpecialAuthority.MarshalJSON()
				if err != nil {
					return err
				}
				buf.Write(obj)
			}
			buf.WriteByte(',')
		}
	}
	if j.BuybackOptions != nil {
		if true {
			buf.WriteString(`"buyback_options":`)
			{
				err = j.BuybackOptions.MarshalJSONBuf(buf)
				if err != nil {
					return err
				}
			}
			buf.WriteByte(',')
		}
	}
	buf.Rewind(1)
	buf.WriteByte('}')
	return nil
}
const (
	ffjtAccountCreateExtensionsbase = iota
	ffjtAccountCreateExtensionsnosuchkey
	ffjtAccountCreateExtensionsNullExt
	ffjtAccountCreateExtensionsOwnerSpecialAuthority
	ffjtAccountCreateExtensionsActiveSpecialAuthority
	ffjtAccountCreateExtensionsBuybackOptions
)
var ffjKeyAccountCreateExtensionsNullExt = []byte("null_ext")
var ffjKeyAccountCreateExtensionsOwnerSpecialAuthority = []byte("owner_special_authority")
var ffjKeyAccountCreateExtensionsActiveSpecialAuthority = []byte("active_special_authority")
var ffjKeyAccountCreateExtensionsBuybackOptions = []byte("buyback_options")
func (j *AccountCreateExtensions) UnmarshalJSON(input []byte) error {
	fs := fflib.NewFFLexer(input)
	return j.UnmarshalJSONFFLexer(fs, fflib.FFParse_map_start)
}
func (j *AccountCreateExtensions) UnmarshalJSONFFLexer(fs *fflib.FFLexer, state fflib.FFParseState) error {
	var err error
	currentKey := ffjtAccountCreateExtensionsbase
	_ = currentKey
	tok := fflib.FFTok_init
	wantedTok := fflib.FFTok_init
mainparse:
	for {
		tok = fs.Scan()
		if tok == fflib.FFTok_error {
			goto tokerror
		}
		switch state {
		case fflib.FFParse_map_start:
			if tok != fflib.FFTok_left_bracket {
				wantedTok = fflib.FFTok_left_bracket
				goto wrongtokenerror
			}
			state = fflib.FFParse_want_key
			continue
		case fflib.FFParse_after_value:
			if tok == fflib.FFTok_comma {
				state = fflib.FFParse_want_key
			} else if tok == fflib.FFTok_right_bracket {
				goto done
			} else {
				wantedTok = fflib.FFTok_comma
				goto wrongtokenerror
			}
		case fflib.FFParse_want_key:
			if tok == fflib.FFTok_right_bracket {
				goto done
			}
			if tok != fflib.FFTok_string {
				wantedTok = fflib.FFTok_string
				goto wrongtokenerror
			}
			kn := fs.Output.Bytes()
			if len(kn) <= 0 {
				currentKey = ffjtAccountCreateExtensionsnosuchkey
				state = fflib.FFParse_want_colon
				goto mainparse
			} else {
				switch kn[0] {
				case 'a':
					if bytes.Equal(ffjKeyAccountCreateExtensionsActiveSpecialAuthority, kn) {
						currentKey = ffjtAccountCreateExtensionsActiveSpecialAuthority
						state = fflib.FFParse_want_colon
						goto mainparse
					}
				case 'b':
					if bytes.Equal(ffjKeyAccountCreateExtensionsBuybackOptions, kn) {
						currentKey = ffjtAccountCreateExtensionsBuybackOptions
						state = fflib.FFParse_want_colon
						goto mainparse
					}
				case 'n':
					if bytes.Equal(ffjKeyAccountCreateExtensionsNullExt, kn) {
						currentKey = ffjtAccountCreateExtensionsNullExt
						state = fflib.FFParse_want_colon
						goto mainparse
					}
				case 'o':
					if bytes.Equal(ffjKeyAccountCreateExtensionsOwnerSpecialAuthority, kn) {
						currentKey = ffjtAccountCreateExtensionsOwnerSpecialAuthority
						state = fflib.FFParse_want_colon
						goto mainparse
					}
				}
				if fflib.EqualFoldRight(ffjKeyAccountCreateExtensionsBuybackOptions, kn) {
					currentKey = ffjtAccountCreateExtensionsBuybackOptions
					state = fflib.FFParse_want_colon
					goto mainparse
				}
				if fflib.EqualFoldRight(ffjKeyAccountCreateExtensionsActiveSpecialAuthority, kn) {
					currentKey = ffjtAccountCreateExtensionsActiveSpecialAuthority
					state = fflib.FFParse_want_colon
					goto mainparse
				}
				if fflib.EqualFoldRight(ffjKeyAccountCreateExtensionsOwnerSpecialAuthority, kn) {
					currentKey = ffjtAccountCreateExtensionsOwnerSpecialAuthority
					state = fflib.FFParse_want_colon
					goto mainparse
				}
				if fflib.AsciiEqualFold(ffjKeyAccountCreateExtensionsNullExt, kn) {
					currentKey = ffjtAccountCreateExtensionsNullExt
					state = fflib.FFParse_want_colon
					goto mainparse
				}
				currentKey = ffjtAccountCreateExtensionsnosuchkey
				state = fflib.FFParse_want_colon
				goto mainparse
			}
		case fflib.FFParse_want_colon:
			if tok != fflib.FFTok_colon {
				wantedTok = fflib.FFTok_colon
				goto wrongtokenerror
			}
			state = fflib.FFParse_want_value
			continue
		case fflib.FFParse_want_value:
			if tok == fflib.FFTok_left_brace || tok == fflib.FFTok_left_bracket || tok == fflib.FFTok_integer || tok == fflib.FFTok_double || tok == fflib.FFTok_string || tok == fflib.FFTok_bool || tok == fflib.FFTok_null {
				switch currentKey {
				case ffjtAccountCreateExtensionsNullExt:
					goto handle_NullExt
				case ffjtAccountCreateExtensionsOwnerSpecialAuthority:
					goto handle_OwnerSpecialAuthority
				case ffjtAccountCreateExtensionsActiveSpecialAuthority:
					goto handle_ActiveSpecialAuthority
				case ffjtAccountCreateExtensionsBuybackOptions:
					goto handle_BuybackOptions
				case ffjtAccountCreateExtensionsnosuchkey:
					err = fs.SkipField(tok)
					if err != nil {
						return fs.WrapErr(err)
					}
					state = fflib.FFParse_after_value
					goto mainparse
				}
			} else {
				goto wantedvalue
			}
		}
	}
handle_NullExt:
	{
		if tok == fflib.FFTok_null {
			j.NullExt = nil
		} else {
			if j.NullExt == nil {
				j.NullExt = new(NullExtension)
			}
			err = j.NullExt.UnmarshalJSONFFLexer(fs, fflib.FFParse_want_key)
			if err != nil {
				return err
			}
		}
		state = fflib.FFParse_after_value
	}
	state = fflib.FFParse_after_value
	goto mainparse
handle_OwnerSpecialAuthority:
	{
		if tok == fflib.FFTok_null {
			j.OwnerSpecialAuthority = nil
		} else {
			tbuf, err := fs.CaptureField(tok)
			if err != nil {
				return fs.WrapErr(err)
			}
			if j.OwnerSpecialAuthority == nil {
				j.OwnerSpecialAuthority = new(OwnerSpecialAuthority)
			}
			err = j.OwnerSpecialAuthority.UnmarshalJSON(tbuf)
			if err != nil {
				return fs.WrapErr(err)
			}
		}
		state = fflib.FFParse_after_value
	}
	state = fflib.FFParse_after_value
	goto mainparse
handle_ActiveSpecialAuthority:
	{
		if tok == fflib.FFTok_null {
			j.ActiveSpecialAuthority = nil
		} else {
			tbuf, err := fs.CaptureField(tok)
			if err != nil {
				return fs.WrapErr(err)
			}
			if j.ActiveSpecialAuthority == nil {
				j.ActiveSpecialAuthority = new(ActiveSpecialAuthority)
			}
			err = j.ActiveSpecialAuthority.UnmarshalJSON(tbuf)
			if err != nil {
				return fs.WrapErr(err)
			}
		}
		state = fflib.FFParse_after_value
	}
	state = fflib.FFParse_after_value
	goto mainparse
handle_BuybackOptions:
	{
		if tok == fflib.FFTok_null {
			j.BuybackOptions = nil
		} else {
			if j.BuybackOptions == nil {
				j.BuybackOptions = new(BuybackOptions)
			}
			err = j.BuybackOptions.UnmarshalJSONFFLexer(fs, fflib.FFParse_want_key)
			if err != nil {
				return err
			}
		}
		state = fflib.FFParse_after_value
	}
	state = fflib.FFParse_after_value
	goto mainparse
wantedvalue:
	return fs.WrapErr(fmt.Errorf("wanted value token, but got token: %v", tok))
wrongtokenerror:
	return fs.WrapErr(fmt.Errorf("ffjson: wanted token: %v, but got token: %v output=%s", wantedTok, tok, fs.Output.String()))
tokerror:
	if fs.BigError != nil {
		return fs.WrapErr(fs.BigError)
	}
	err = fs.Error.ToError()
	if err != nil {
		return fs.WrapErr(err)
	}
	panic("ffjson-generated: unreachable, please report bug.")
done:
	return nil
}
func (j *AccountUpdateExtensions) MarshalJSON() ([]byte, error) {
	var buf fflib.Buffer
	if j == nil {
		buf.WriteString("null")
		return buf.Bytes(), nil
	}
	err := j.MarshalJSONBuf(&buf)
	if err != nil {
		return nil, err
	}
	return buf.Bytes(), nil
}