{{- define "signature" -}}
First_{{ .Suffix }}({{ ctxparam .Args }}) (
	{{ param .Row }}, err error)
{{- end -}}

{{- define "invoke" -}}
First_{{ .Suffix }}({{ ctxarg .Args }})
{{- end -}}

{{- define "body" }}
	{{ embedplaceholders .Info }}
	{{ embedsql .Info "__embed_stmt" }}

	var __values []interface{}
	{{ embedvalues .Args "__values" }}

	var __stmt = __sqlbundle_Render(obj.dialect, __embed_stmt)
	obj.logStmt(__stmt, __values...)

	__rows, err := obj.driver.QueryContext(ctx, __stmt, __values...)
	if err != nil {
		return nil, obj.makeErr(err)
	}
	defer __rows.Close()

	if !__rows.Next() {
		if err := __rows.Err(); err != nil {
			return nil, obj.makeErr(err)
		}
		return nil, nil
	}

	{{ init .Row }}
	err = __rows.Scan({{ addrof (flatten .Row) }})
	if err != nil {
		return nil, obj.makeErr(err)
	}

	return {{ arg .Row }}, nil
{{ end -}}