diff --git a/package-lock.json b/package-lock.json
index d0f97e5..12c8652 100644
--- a/package-lock.json
+++ b/package-lock.json
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-        "reflect-metadata": "^0.1.12",
-        "tslib": "^1.8.1"
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-        "tslib": "^1.9.3"
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+        "chalk": "2.4.1",
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-        "http-call": "^5.2.2",
-        "netrc-parser": "^3.1.6",
-        "opn": "^5.4.0"
+        "@heroku-cli/color": "1.1.14",
+        "@oclif/errors": "1.2.2",
+        "cli-ux": "4.9.3",
+        "debug": "4.1.0",
+        "fs-extra": "7.0.1",
+        "heroku-client": "3.0.7",
+        "http-call": "5.2.3",
+        "netrc-parser": "3.1.6",
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-        "@heroku-cli/notifications": "^1.2.2",
-        "@heroku/eventsource": "^1.0.7",
+        "@heroku-cli/color": "1.1.14",
+        "@heroku-cli/command": "8.2.6",
+        "@heroku-cli/notifications": "1.2.2",
+        "@heroku/eventsource": "1.0.7",
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-        "fs-extra": "^7.0.1",
-        "heroku-cli-util": "^8.0.10",
-        "shellwords": "^0.1.1"
+        "fs-extra": "7.0.1",
+        "heroku-cli-util": "8.0.11",
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-        "glob-to-regexp": "^0.3.0"
+        "call-me-maybe": "1.0.1",
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-        "debug": "^4.1.0",
-        "semver": "^5.6.0"
+        "@oclif/errors": "1.2.2",
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+        "debug": "4.1.0",
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-        "qqjs": "^0.3.10",
-        "tslib": "^1.9.3"
+        "@oclif/command": "1.5.6",
+        "@oclif/config": "1.9.0",
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+        "debug": "4.1.0",
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+        "clean-stack": "1.3.0",
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-        "wrap-ansi": "^4.0.0"
+        "@oclif/command": "1.5.6",
+        "chalk": "2.4.1",
+        "indent-string": "3.2.0",
+        "lodash.template": "4.4.0",
+        "string-width": "2.1.1",
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+        "fancy-test": "1.4.1"
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+        "sprintf-js": "1.0.3"
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@@ -460,7 +460,7 @@
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+        "array-uniq": "1.0.3"
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+        "chalk": "1.1.3",
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@@ -534,11 +534,11 @@
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-        "execa": "^0.10.0"
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@@ -2569,7 +2581,7 @@
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@@ -2579,15 +2591,32 @@
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+      "resolved": "https://registry.npmjs.org/nock/-/nock-10.0.5.tgz",
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+        "debug": "4.1.0",
+        "deep-equal": "1.0.1",
+        "json-stringify-safe": "5.0.1",
+        "lodash": "4.17.11",
+        "mkdirp": "0.5.1",
+        "propagate": "1.0.0",
+        "qs": "6.6.0",
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-        "semver": "^5.5.0",
-        "shellwords": "^0.1.1",
-        "which": "^1.3.0"
+        "growly": "1.3.0",
+        "semver": "5.6.0",
+        "shellwords": "0.1.1",
+        "which": "1.3.1"
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-        "is-builtin-module": "^1.0.0",
-        "semver": "2 || 3 || 4 || 5",
-        "validate-npm-package-license": "^3.0.1"
+        "hosted-git-info": "2.7.1",
+        "is-builtin-module": "1.0.0",
+        "semver": "5.6.0",
+        "validate-npm-package-license": "3.0.4"
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@@ -2607,9 +2636,9 @@
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-        "prepend-http": "^2.0.0",
-        "query-string": "^5.0.1",
-        "sort-keys": "^2.0.0"
+        "prepend-http": "2.0.0",
+        "query-string": "5.1.1",
+        "sort-keys": "2.0.0"
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@@ -2617,7 +2646,7 @@
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       "integrity": "sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=",
       "requires": {
-        "path-key": "^2.0.0"
+        "path-key": "2.0.1"
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@@ -2626,31 +2655,31 @@
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-        "signal-exit": "^3.0.2",
-        "spawn-wrap": "^1.4.2",
-        "test-exclude": "^5.0.0",
-        "uuid": "^3.3.2",
+        "archy": "1.0.0",
+        "arrify": "1.0.1",
+        "caching-transform": "2.0.0",
+        "convert-source-map": "1.6.0",
+        "debug-log": "1.0.1",
+        "find-cache-dir": "2.0.0",
+        "find-up": "3.0.0",
+        "foreground-child": "1.5.6",
+        "glob": "7.1.3",
+        "istanbul-lib-coverage": "2.0.1",
+        "istanbul-lib-hook": "2.0.1",
+        "istanbul-lib-instrument": "3.0.0",
+        "istanbul-lib-report": "2.0.2",
+        "istanbul-lib-source-maps": "2.0.1",
+        "istanbul-reports": "2.0.1",
+        "make-dir": "1.3.0",
+        "merge-source-map": "1.1.0",
+        "resolve-from": "4.0.0",
+        "rimraf": "2.6.2",
+        "signal-exit": "3.0.2",
+        "spawn-wrap": "1.4.2",
+        "test-exclude": "5.0.0",
+        "uuid": "3.3.2",
         "yargs": "11.1.0",
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@@ -2658,9 +2687,9 @@
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-            "kind-of": "^3.0.2",
-            "longest": "^1.0.1",
-            "repeat-string": "^1.5.2"
+            "kind-of": "3.2.2",
+            "longest": "1.0.1",
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@@ -2678,7 +2707,7 @@
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           "dev": true,
           "requires": {
-            "default-require-extensions": "^2.0.0"
+            "default-require-extensions": "2.0.0"
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@@ -2706,7 +2735,7 @@
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           "dev": true,
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-            "balanced-match": "^1.0.0",
+            "balanced-match": "1.0.0",
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@@ -2720,10 +2749,10 @@
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-            "md5-hex": "^2.0.0",
-            "package-hash": "^2.0.0",
-            "write-file-atomic": "^2.0.0"
+            "make-dir": "1.3.0",
+            "md5-hex": "2.0.0",
+            "package-hash": "2.0.0",
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@@ -2738,8 +2767,8 @@
           "dev": true,
           "optional": true,
           "requires": {
-            "align-text": "^0.1.3",
-            "lazy-cache": "^1.0.3"
+            "align-text": "0.1.4",
+            "lazy-cache": "1.0.4"
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@@ -2748,8 +2777,8 @@
           "dev": true,
           "optional": true,
           "requires": {
-            "center-align": "^0.1.1",
-            "right-align": "^0.1.1",
+            "center-align": "0.1.3",
+            "right-align": "0.1.3",
             "wordwrap": "0.0.2"
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@@ -2781,7 +2810,7 @@
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           "dev": true,
           "requires": {
-            "safe-buffer": "~5.1.1"
+            "safe-buffer": "5.1.2"
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@@ -2789,8 +2818,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "lru-cache": "^4.0.1",
-            "which": "^1.2.9"
+            "lru-cache": "4.1.3",
+            "which": "1.3.1"
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@@ -2816,7 +2845,7 @@
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           "dev": true,
           "requires": {
-            "strip-bom": "^3.0.0"
+            "strip-bom": "3.0.0"
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@@ -2824,7 +2853,7 @@
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           "dev": true,
           "requires": {
-            "is-arrayish": "^0.2.1"
+            "is-arrayish": "0.2.1"
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@@ -2837,13 +2866,13 @@
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-            "p-finally": "^1.0.0",
-            "signal-exit": "^3.0.0",
-            "strip-eof": "^1.0.0"
+            "cross-spawn": "5.1.0",
+            "get-stream": "3.0.0",
+            "is-stream": "1.1.0",
+            "npm-run-path": "2.0.2",
+            "p-finally": "1.0.0",
+            "signal-exit": "3.0.2",
+            "strip-eof": "1.0.0"
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@@ -2851,9 +2880,9 @@
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               "requires": {
-                "lru-cache": "^4.0.1",
-                "shebang-command": "^1.2.0",
-                "which": "^1.2.9"
+                "lru-cache": "4.1.3",
+                "shebang-command": "1.2.0",
+                "which": "1.3.1"
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@@ -2863,9 +2892,9 @@
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-            "make-dir": "^1.0.0",
-            "pkg-dir": "^3.0.0"
+            "commondir": "1.0.1",
+            "make-dir": "1.3.0",
+            "pkg-dir": "3.0.0"
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@@ -2873,7 +2902,7 @@
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           "dev": true,
           "requires": {
-            "locate-path": "^3.0.0"
+            "locate-path": "3.0.0"
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@@ -2881,8 +2910,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "cross-spawn": "^4",
-            "signal-exit": "^3.0.0"
+            "cross-spawn": "4.0.2",
+            "signal-exit": "3.0.2"
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@@ -2905,12 +2934,12 @@
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-            "inflight": "^1.0.4",
-            "inherits": "2",
-            "minimatch": "^3.0.4",
-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
+            "fs.realpath": "1.0.0",
+            "inflight": "1.0.6",
+            "inherits": "2.0.3",
+            "minimatch": "3.0.4",
+            "once": "1.4.0",
+            "path-is-absolute": "1.0.1"
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@@ -2923,10 +2952,10 @@
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-            "async": "^1.4.0",
-            "optimist": "^0.6.1",
-            "source-map": "^0.4.4",
-            "uglify-js": "^2.6"
+            "async": "1.5.2",
+            "optimist": "0.6.1",
+            "source-map": "0.4.4",
+            "uglify-js": "2.8.29"
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@@ -2934,7 +2963,7 @@
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               "dev": true,
               "requires": {
-                "amdefine": ">=0.0.4"
+                "amdefine": "1.0.1"
               }
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@@ -2959,8 +2988,8 @@
           "bundled": true,
           "dev": true,
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-            "once": "^1.3.0",
-            "wrappy": "1"
+            "once": "1.4.0",
+            "wrappy": "1.0.2"
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@@ -2988,7 +3017,7 @@
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           "dev": true,
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-            "builtin-modules": "^1.0.0"
+            "builtin-modules": "1.1.1"
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@@ -3016,7 +3045,7 @@
           "bundled": true,
           "dev": true,
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+            "append-transform": "1.0.0"
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@@ -3024,9 +3053,9 @@
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-            "make-dir": "^1.3.0",
-            "supports-color": "^5.4.0"
+            "istanbul-lib-coverage": "2.0.1",
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@@ -3034,11 +3063,11 @@
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-            "make-dir": "^1.3.0",
-            "rimraf": "^2.6.2",
-            "source-map": "^0.6.1"
+            "debug": "3.1.0",
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+            "make-dir": "1.3.0",
+            "rimraf": "2.6.2",
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@@ -3053,7 +3082,7 @@
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           "dev": true,
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-            "handlebars": "^4.0.11"
+            "handlebars": "4.0.11"
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@@ -3066,7 +3095,7 @@
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           "dev": true,
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+            "is-buffer": "1.1.6"
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@@ -3080,7 +3109,7 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "invert-kv": "^1.0.0"
+            "invert-kv": "1.0.0"
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@@ -3088,10 +3117,10 @@
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-            "parse-json": "^4.0.0",
-            "pify": "^3.0.0",
-            "strip-bom": "^3.0.0"
+            "graceful-fs": "4.1.11",
+            "parse-json": "4.0.0",
+            "pify": "3.0.0",
+            "strip-bom": "3.0.0"
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@@ -3099,8 +3128,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "p-locate": "^3.0.0",
-            "path-exists": "^3.0.0"
+            "p-locate": "3.0.0",
+            "path-exists": "3.0.0"
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@@ -3118,8 +3147,8 @@
           "bundled": true,
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           "requires": {
-            "pseudomap": "^1.0.2",
-            "yallist": "^2.1.2"
+            "pseudomap": "1.0.2",
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@@ -3127,7 +3156,7 @@
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+            "pify": "3.0.0"
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@@ -3135,7 +3164,7 @@
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-            "md5-o-matic": "^0.1.1"
+            "md5-o-matic": "0.1.1"
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@@ -3148,7 +3177,7 @@
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           "dev": true,
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-            "mimic-fn": "^1.0.0"
+            "mimic-fn": "1.2.0"
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@@ -3156,7 +3185,7 @@
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           "dev": true,
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+            "source-map": "0.6.1"
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@@ -3176,7 +3205,7 @@
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           "dev": true,
           "requires": {
-            "brace-expansion": "^1.1.7"
+            "brace-expansion": "1.1.11"
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@@ -3209,10 +3238,10 @@
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-            "is-builtin-module": "^1.0.0",
-            "semver": "2 || 3 || 4 || 5",
-            "validate-npm-package-license": "^3.0.1"
+            "hosted-git-info": "2.7.1",
+            "is-builtin-module": "1.0.0",
+            "semver": "5.5.0",
+            "validate-npm-package-license": "3.0.3"
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@@ -3220,7 +3249,7 @@
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+            "path-key": "2.0.1"
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@@ -3233,7 +3262,7 @@
           "bundled": true,
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           "requires": {
-            "wrappy": "1"
+            "wrappy": "1.0.2"
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@@ -3241,8 +3270,8 @@
           "bundled": true,
           "dev": true,
           "requires": {
-            "minimist": "~0.0.1",
-            "wordwrap": "~0.0.2"
+            "minimist": "0.0.10",
+            "wordwrap": "0.0.3"
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@@ -3255,9 +3284,9 @@
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-            "execa": "^0.7.0",
-            "lcid": "^1.0.0",
-            "mem": "^1.1.0"
+            "execa": "0.7.0",
+            "lcid": "1.0.0",
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@@ -3270,7 +3299,7 @@
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           "dev": true,
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-            "p-try": "^2.0.0"
+            "p-try": "2.0.0"
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+        "error-ex": "1.3.2",
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-        "cross-spawn": "^6.0.5"
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+      "integrity": "sha1-AMLa7t2iDofjeCs0Stuhzd1q1wk=",
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-        "once": "^1.3.1"
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         "slice-ansi": "2.0.0",
-        "string-width": "^2.1.1"
+        "string-width": "2.1.1"
       }
     },
     "tar-fs": {
@@ -4723,10 +4764,10 @@
       "integrity": "sha512-NvCeXpYx7OsmOh8zIOP/ebG55zZmxLE0etfWRbWok+q2Qo8x/vOR/IJT1taADXPe+jsiu9axDb3X4B+iIgNlKw==",
       "dev": true,
       "requires": {
-        "chownr": "^1.0.1",
-        "mkdirp": "^0.5.1",
-        "pump": "^1.0.0",
-        "tar-stream": "^1.1.2"
+        "chownr": "1.1.1",
+        "mkdirp": "0.5.1",
+        "pump": "1.0.3",
+        "tar-stream": "1.6.2"
       }
     },
     "tar-stream": {
@@ -4735,13 +4776,13 @@
       "integrity": "sha512-rzS0heiNf8Xn7/mpdSVVSMAWAoy9bfb1WOTYC78Z0UQKeKa/CWS8FOq0lKGNa8DWKAn9gxjCvMLYc5PGXYlK2A==",
       "dev": true,
       "requires": {
-        "bl": "^1.0.0",
-        "buffer-alloc": "^1.2.0",
-        "end-of-stream": "^1.0.0",
-        "fs-constants": "^1.0.0",
-        "readable-stream": "^2.3.0",
-        "to-buffer": "^1.1.1",
-        "xtend": "^4.0.0"
+        "bl": "1.2.2",
+        "buffer-alloc": "1.2.0",
+        "end-of-stream": "1.4.1",
+        "fs-constants": "1.0.0",
+        "readable-stream": "2.3.6",
+        "to-buffer": "1.1.1",
+        "xtend": "4.0.1"
       }
     },
     "text-table": {
@@ -4767,7 +4808,7 @@
       "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
       "dev": true,
       "requires": {
-        "os-tmpdir": "~1.0.2"
+        "os-tmpdir": "1.0.2"
       }
     },
     "to-buffer": {
@@ -4788,7 +4829,7 @@
       "integrity": "sha1-KXWIt7Dn4KwI4E5nL4XB9JmeF68=",
       "dev": true,
       "requires": {
-        "kind-of": "^3.0.2"
+        "kind-of": "3.2.2"
       },
       "dependencies": {
         "kind-of": {
@@ -4797,7 +4838,7 @@
           "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
           "dev": true,
           "requires": {
-            "is-buffer": "^1.1.5"
+            "is-buffer": "1.1.6"
           }
         }
       }
@@ -4808,10 +4849,10 @@
       "integrity": "sha512-FWtleNAtZ/Ki2qtqej2CXTOayOH9bHDQF+Q48VpWyDXjbYxA4Yz8iDB31zXOBUlOHHKidDbqGVrTUvQMPmBGBw==",
       "dev": true,
       "requires": {
-        "define-property": "^2.0.2",
-        "extend-shallow": "^3.0.2",
-        "regex-not": "^1.0.2",
-        "safe-regex": "^1.1.0"
+        "define-property": "2.0.2",
+        "extend-shallow": "3.0.2",
+        "regex-not": "1.0.2",
+        "safe-regex": "1.1.0"
       }
     },
     "to-regex-range": {
@@ -4820,8 +4861,8 @@
       "integrity": "sha1-fIDBe53+vlmeJzZ+DU3VWQFB2zg=",
       "dev": true,
       "requires": {
-        "is-number": "^3.0.0",
-        "repeat-string": "^1.6.1"
+        "is-number": "3.0.0",
+        "repeat-string": "1.6.1"
       }
     },
     "treeify": {
@@ -4841,14 +4882,14 @@
       "integrity": "sha512-BVwVbPJRspzNh2yfslyT1PSbl5uIk03EZlb493RKHN4qej/D06n1cEhjlOJG69oFsE7OT8XjpTUcYf6pKTLMhw==",
       "dev": true,
       "requires": {
-        "arrify": "^1.0.0",
-        "buffer-from": "^1.1.0",
-        "diff": "^3.1.0",
-        "make-error": "^1.1.1",
-        "minimist": "^1.2.0",
-        "mkdirp": "^0.5.1",
-        "source-map-support": "^0.5.6",
-        "yn": "^2.0.0"
+        "arrify": "1.0.1",
+        "buffer-from": "1.1.1",
+        "diff": "3.5.0",
+        "make-error": "1.3.5",
+        "minimist": "1.2.0",
+        "mkdirp": "0.5.1",
+        "source-map-support": "0.5.9",
+        "yn": "2.0.0"
       },
       "dependencies": {
         "minimist": {
@@ -4870,18 +4911,18 @@
       "integrity": "sha1-mPMMAurjzecAYgHkwzywi0hYHu0=",
       "dev": true,
       "requires": {
-        "babel-code-frame": "^6.22.0",
-        "builtin-modules": "^1.1.1",
-        "chalk": "^2.3.0",
-        "commander": "^2.12.1",
-        "diff": "^3.2.0",
-        "glob": "^7.1.1",
-        "js-yaml": "^3.7.0",
-        "minimatch": "^3.0.4",
-        "resolve": "^1.3.2",
-        "semver": "^5.3.0",
-        "tslib": "^1.8.0",
-        "tsutils": "^2.27.2"
+        "babel-code-frame": "6.26.0",
+        "builtin-modules": "1.1.1",
+        "chalk": "2.4.1",
+        "commander": "2.15.1",
+        "diff": "3.5.0",
+        "glob": "7.1.3",
+        "js-yaml": "3.12.0",
+        "minimatch": "3.0.4",
+        "resolve": "1.9.0",
+        "semver": "5.6.0",
+        "tslib": "1.9.3",
+        "tsutils": "2.29.0"
       },
       "dependencies": {
         "tsutils": {
@@ -4890,7 +4931,7 @@
           "integrity": "sha512-g5JVHCIJwzfISaXpXE1qvNalca5Jwob6FjI4AoPlqMusJ6ftFE7IkkFoMhVLRgK+4Kx3gkzb8UZK5t5yTTvEmA==",
           "dev": true,
           "requires": {
-            "tslib": "^1.8.1"
+            "tslib": "1.9.3"
           }
         }
       }
@@ -4901,9 +4942,9 @@
       "integrity": "sha512-UxGRX2fF5LpZtqYpuPFaIva+2D7ASX3pTVw41yis6Hmw7PPA3cBnFEX1jqRsnyxGrca6mHxz7xDnwCHtOjWJMQ==",
       "dev": true,
       "requires": {
-        "@fimbul/bifrost": "^0.15.0",
-        "tslib": "^1.7.1",
-        "tsutils": "^2.29.0"
+        "@fimbul/bifrost": "0.15.0",
+        "tslib": "1.9.3",
+        "tsutils": "2.29.0"
       },
       "dependencies": {
         "tsutils": {
@@ -4912,7 +4953,7 @@
           "integrity": "sha512-g5JVHCIJwzfISaXpXE1qvNalca5Jwob6FjI4AoPlqMusJ6ftFE7IkkFoMhVLRgK+4Kx3gkzb8UZK5t5yTTvEmA==",
           "dev": true,
           "requires": {
-            "tslib": "^1.8.1"
+            "tslib": "1.9.3"
           }
         }
       }
@@ -4925,7 +4966,7 @@
       "requires": {
         "doctrine": "0.7.2",
         "tslib": "1.9.0",
-        "tsutils": "^3.0.0"
+        "tsutils": "3.5.2"
       },
       "dependencies": {
         "tslib": {
@@ -4942,7 +4983,7 @@
       "integrity": "sha512-PDYjvpo0gN9IfMULwKk0KpVOPMhU6cNoT9VwCOLeDl/QS8v8W2yspRpFFuUS7/c5EIH/n8ApMi8TxJAz1tfFUA==",
       "dev": true,
       "requires": {
-        "tsutils": "^2.27.2 <2.29.0"
+        "tsutils": "2.28.0"
       },
       "dependencies": {
         "tsutils": {
@@ -4951,7 +4992,7 @@
           "integrity": "sha512-bh5nAtW0tuhvOJnx1GLRn5ScraRLICGyJV5wJhtRWOLsxW70Kk5tZtpK3O/hW6LDnqKS9mlUMPZj9fEMJ0gxqA==",
           "dev": true,
           "requires": {
-            "tslib": "^1.8.1"
+            "tslib": "1.9.3"
           }
         }
       }
@@ -4962,9 +5003,9 @@
       "integrity": "sha512-Zk5jBdQVUaHEmR9TUoh1TJOjjCr7/nRplA+jDZBvucyBMx65pt0unTr6H/0HvrtSlucFvOMYsyBZE1W8b4AOig==",
       "dev": true,
       "requires": {
-        "tslint-consistent-codestyle": "^1.11.0",
-        "tslint-eslint-rules": "^5.3.1",
-        "tslint-microsoft-contrib": "^5.0.2"
+        "tslint-consistent-codestyle": "1.14.1",
+        "tslint-eslint-rules": "5.4.0",
+        "tslint-microsoft-contrib": "5.2.1"
       }
     },
     "tsutils": {
@@ -4973,7 +5014,7 @@
       "integrity": "sha512-qIlklNuI/1Dzfm+G+kJV5gg3gimZIX5haYtIVQe7qGyKd7eu8T1t1DY6pz4Sc2CGXAj9s1izycctm9Zfl9sRuQ==",
       "dev": true,
       "requires": {
-        "tslib": "^1.8.1"
+        "tslib": "1.9.3"
       }
     },
     "tunnel-agent": {
@@ -4981,7 +5022,7 @@
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
       "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
       "requires": {
-        "safe-buffer": "^5.0.1"
+        "safe-buffer": "5.1.2"
       }
     },
     "type-check": {
@@ -4990,7 +5031,7 @@
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
       "dev": true,
       "requires": {
-        "prelude-ls": "~1.1.2"
+        "prelude-ls": "1.1.2"
       }
     },
     "type-detect": {
@@ -5011,10 +5052,10 @@
       "integrity": "sha1-XHHDTLW61dzr4+oM0IIHulqhrqQ=",
       "dev": true,
       "requires": {
-        "arr-union": "^3.1.0",
-        "get-value": "^2.0.6",
-        "is-extendable": "^0.1.1",
-        "set-value": "^0.4.3"
+        "arr-union": "3.1.0",
+        "get-value": "2.0.6",
+        "is-extendable": "0.1.1",
+        "set-value": "0.4.3"
       },
       "dependencies": {
         "extend-shallow": {
@@ -5023,7 +5064,7 @@
           "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
           "dev": true,
           "requires": {
-            "is-extendable": "^0.1.0"
+            "is-extendable": "0.1.1"
           }
         },
         "set-value": {
@@ -5032,10 +5073,10 @@
           "integrity": "sha1-fbCPnT0i3H945Trzw79GZuzfzPE=",
           "dev": true,
           "requires": {
-            "extend-shallow": "^2.0.1",
-            "is-extendable": "^0.1.1",
-            "is-plain-object": "^2.0.1",
-            "to-object-path": "^0.3.0"
+            "extend-shallow": "2.0.1",
+            "is-extendable": "0.1.1",
+            "is-plain-object": "2.0.4",
+            "to-object-path": "0.3.0"
           }
         }
       }
@@ -5051,8 +5092,8 @@
       "integrity": "sha1-g3aHP30jNRef+x5vw6jtDfyKtVk=",
       "dev": true,
       "requires": {
-        "has-value": "^0.3.1",
-        "isobject": "^3.0.0"
+        "has-value": "0.3.1",
+        "isobject": "3.0.1"
       },
       "dependencies": {
         "has-value": {
@@ -5061,9 +5102,9 @@
           "integrity": "sha1-ex9YutpiyoJ+wKIHgCVlSEWZXh8=",
           "dev": true,
           "requires": {
-            "get-value": "^2.0.3",
-            "has-values": "^0.1.4",
-            "isobject": "^2.0.0"
+            "get-value": "2.0.6",
+            "has-values": "0.1.4",
+            "isobject": "2.1.0"
           },
           "dependencies": {
             "isobject": {
@@ -5091,7 +5132,7 @@
       "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
       "dev": true,
       "requires": {
-        "punycode": "^2.1.0"
+        "punycode": "2.1.1"
       }
     },
     "urix": {
@@ -5105,8 +5146,8 @@
       "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.4.4.tgz",
       "integrity": "sha512-/92DTTorg4JjktLNLe6GPS2/RvAd/RGr6LuktmWSMLEOa6rjnlrFXNgSbSmkNvCoL2T028A0a1JaJLzRMlFoHg==",
       "requires": {
-        "querystringify": "^2.0.0",
-        "requires-port": "^1.0.0"
+        "querystringify": "2.1.0",
+        "requires-port": "1.0.0"
       }
     },
     "url-parse-lax": {
@@ -5114,7 +5155,7 @@
       "resolved": "https://registry.npmjs.org/url-parse-lax/-/url-parse-lax-3.0.0.tgz",
       "integrity": "sha1-FrXK/Afb42dsGxmZF3gj1lA6yww=",
       "requires": {
-        "prepend-http": "^2.0.0"
+        "prepend-http": "2.0.0"
       }
     },
     "url-to-options": {
@@ -5139,8 +5180,8 @@
       "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
       "dev": true,
       "requires": {
-        "spdx-correct": "^3.0.0",
-        "spdx-expression-parse": "^3.0.0"
+        "spdx-correct": "3.1.0",
+        "spdx-expression-parse": "3.0.0"
       }
     },
     "which": {
@@ -5148,7 +5189,7 @@
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
       "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
       "requires": {
-        "isexe": "^2.0.0"
+        "isexe": "2.0.0"
       }
     },
     "widest-line": {
@@ -5157,7 +5198,7 @@
       "integrity": "sha512-Ba5m9/Fa4Xt9eb2ELXt77JxVDV8w7qQrH0zS/TWSJdLyAwQjWoOzpzj5lwVftDz6n/EOu3tNACS84v509qwnJA==",
       "dev": true,
       "requires": {
-        "string-width": "^2.1.1"
+        "string-width": "2.1.1"
       }
     },
     "wordwrap": {
@@ -5171,9 +5212,9 @@
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-4.0.0.tgz",
       "integrity": "sha512-uMTsj9rDb0/7kk1PbcbCcwvHUxp60fGDB/NNXpVa0Q+ic/e7y5+BwTxKfQ33VYgDppSwi/FBzpetYzo8s6tfbg==",
       "requires": {
-        "ansi-styles": "^3.2.0",
-        "string-width": "^2.1.1",
-        "strip-ansi": "^4.0.0"
+        "ansi-styles": "3.2.1",
+        "string-width": "2.1.1",
+        "strip-ansi": "4.0.0"
       },
       "dependencies": {
         "ansi-regex": {
@@ -5186,7 +5227,7 @@
           "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
           "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
           "requires": {
-            "ansi-regex": "^3.0.0"
+            "ansi-regex": "3.0.0"
           }
         }
       }
@@ -5203,7 +5244,7 @@
       "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
       "dev": true,
       "requires": {
-        "mkdirp": "^0.5.1"
+        "mkdirp": "0.5.1"
       }
     },
     "write-file-atomic": {
@@ -5212,9 +5253,9 @@
       "integrity": "sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==",
       "dev": true,
       "requires": {
-        "graceful-fs": "^4.1.11",
-        "imurmurhash": "^0.1.4",
-        "signal-exit": "^3.0.2"
+        "graceful-fs": "4.1.15",
+        "imurmurhash": "0.1.4",
+        "signal-exit": "3.0.2"
       }
     },
     "write-json-file": {
@@ -5223,12 +5264,12 @@
       "integrity": "sha1-K2TIozAE1UuGmMdtWFp3zrYdoy8=",
       "dev": true,
       "requires": {
-        "detect-indent": "^5.0.0",
-        "graceful-fs": "^4.1.2",
-        "make-dir": "^1.0.0",
-        "pify": "^3.0.0",
-        "sort-keys": "^2.0.0",
-        "write-file-atomic": "^2.0.0"
+        "detect-indent": "5.0.0",
+        "graceful-fs": "4.1.15",
+        "make-dir": "1.3.0",
+        "pify": "3.0.0",
+        "sort-keys": "2.0.0",
+        "write-file-atomic": "2.3.0"
       }
     },
     "xtend": {
diff --git a/package.json b/package.json
index 5e6b094..31da8eb 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,7 @@
     "eslint": "^5.10.0",
     "globby": "^8.0.1",
     "mocha": "^5.2.0",
+    "nock": "^10.0.5",
     "nyc": "^13.1.0",
     "ts-node": "^7.0.1",
     "tslint": "^5.11.0",
diff --git a/src/@types/@heroku-cli/plugin-run-v5/index.d.ts b/src/@types/@heroku-cli/plugin-run-v5/index.d.ts
new file mode 100644
index 0000000..cff0538
--- /dev/null
+++ b/src/@types/@heroku-cli/plugin-run-v5/index.d.ts
@@ -0,0 +1,3 @@
+/// <reference types="node" />
+
+declare module '@heroku-cli/plugin-run-v5';
diff --git a/src/commands/vim.ts b/src/commands/vim.ts
index 4272db0..4cfffe6 100644
--- a/src/commands/vim.ts
+++ b/src/commands/vim.ts
@@ -1,18 +1,17 @@
 import {Command, flags} from '@heroku-cli/command'
 import {Dyno} from '@heroku-cli/plugin-run-v5'
-import * as Heroku from '@heroku-cli/schema'
 
 export default class AppCommand extends Command {
-  static description = 'Install Vim and use it in a dyno';
+  static description = 'Install Vim and use it in a dyno'
   static flags = {
     remote: flags.remote(),
     app: flags.app({required: true}),
     command: flags.string(({char: 'c', description: 'command to run'}))
-  };
+  }
 
-  async run () {
-    const {flags} = this.parse(AppCommand);
-    let dyno_command = flags.command || 'bash';
+  async run() {
+    const {flags} = this.parse(AppCommand)
+    let dyno_command = flags.command || 'bash'
 
     let opts = {
       heroku: this.legacyHerokuClient,
@@ -29,9 +28,9 @@ export default class AppCommand extends Command {
       showStatus: true,
       attach: true,
       notify: true
-    };
+    }
 
-    let dyno = new Dyno(opts);
+    let dyno = new Dyno(opts)
     await dyno.start()
   }
 }
diff --git a/test/commands/vim.test.ts b/test/commands/vim.test.ts
index 651a421..3f57a8c 100644
--- a/test/commands/vim.test.ts
+++ b/test/commands/vim.test.ts
@@ -1,17 +1,22 @@
 import {expect, test} from '@oclif/test'
 
-describe('hello', () => {
+describe('vim', () => {
   test
-    .stdout()
-    .command(['hello'])
-    .it('runs hello', ctx => {
-      expect(ctx.stdout).to.contain('hello world')
-    })
-
-  test
-    .stdout()
-    .command(['hello', '--name', 'jeff'])
-    .it('runs hello --name jeff', ctx => {
-      expect(ctx.stdout).to.contain('hello jeff')
-    })
+    .nock('https://api.heroku.com', api => api
+      .post('/apps/testapp/dynos')
+      .reply(200, {
+          attach_url: 'https://rendezvous.runtime.heroku.com:5000/123456',
+          name: 'testdyno'
+        }
+      )
+    )
+    .nock('https://api.heroku.com', api => api
+      .persist()
+      .get('/apps/testapp/dynos/testdyno')
+      .reply(404)
+    )
+    .command(['vim', '-a=testapp'])
+    .exit(100)
+    .catch(/404/)
+    .it('makes request to create and attach to heroku dyno');
 })
diff --git a/tsconfig.json b/tsconfig.json
index 5a37265..729de43 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -7,7 +7,11 @@
     "rootDir": "src",
     "strict": true,
     "target": "es2017",
-    "composite": true
+    "composite": true,
+    "baseUrl": "./",
+    "paths": {
+      "*" : ["src/@types/*"]
+    }
   },
   "include": [
     "src/**/*"