Patrick Trumpis

**Describe the bug** ``` TypeError: this.buffer.substring is not a function at Lexer.getLine (/usr/src/app/node_modules/yaml/dist/parse/lexer.js:208:28) at Lexer.parseStream (/usr/src/app/node_modules/yaml/dist/parse/lexer.js:244:25) at parseStream.next () at Lexer.parseNext (/usr/src/app/node_modules/yaml/dist/parse/lexer.js:226:36) at parseNext.next () at Lexer.lex (/usr/src/app/node_modules/yaml/dist/parse/lexer.js:160:32) at lex.next...