Parse error - Syntax Error GraphQL (12569:27) Unexpected Name "null"

[StarpTech]

I faced this error during the benchmark of GraphQL parsers in the wild.

Schema: https://github.com/StarpTech/graphql-parser-bench/blob/main/schema.graphql Code: https://github.com/StarpTech/graphql-parser-bench/tree/main/go-graphql

❯ go run main.go
2021/08/14 19:58:09 Syntax Error GraphQL (12569:27) Unexpected Name "null"

12568:     """
12569:     packageName: String = null
                                 ^
12570:     """
exit status 1