[
  {
    "language": "ruby",
    "fileExt": ".rb",
    "repoUrl": "https://github.com/diff-fixtures/ruby.git",
    "syntaxes": [
      {
        "syntax": "method-declaration-params",
        "template": "def foo{0}\nend",
        "insert": "(a)",
        "replacement": "(a, b, c)"
      }
    ]
  }
]