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: parserc.go
    path of file: ./repos/agones/vendor/gopkg.in/yaml.v2
    
    the code of the file until where you have to start completion: package yaml

import (
	"bytes"
)

// The parser implements the following grammar:
//
// stream               ::= STREAM-START implicit_document? expl
    
func yaml_parser_parse_document_end(parser *yaml_parser_t, event *yaml_event_t) bool {
	token := peek_token(parser)
	if token == nil {
		return false
	}

	start_mark := token.start_mark
	end_mark := token.start_mark

	implicit := true
	if token.typ == yaml_DOCUMENT_END_TOKEN {
		end_mark = token.end_mark
		skip_token(parser)
		implicit = false
	}

	parser.tag_directives = parser.tag_directives[:0]

	parser.state = yaml_PARSE_DOCUMENT_START_STATE
	*event = yaml_event_t{
		typ:        yaml_DOCUMENT_END_EVENT,
		start_mark: start_mark,
		end_mark:   end_mark,
		implicit:   implicit,
	}
	return true
}