new_contents: {
    "targets": [
      {
        "target_name": "ts_language_ruby_binding",
        "include_dirs": [
          "<!(node -e \"require('nan')\")",
          "<!(node -e \"require('tree-sitter-compiler/include_path')\")",
        ],
        "sources": [
          "src/parser.c",
          "src/binding.cc",
        ],
        "cflags_c": [
          "-std=c99",
        ],
      },
    ],
  }
  
subject: Add binding.gyp.