Merge a branch

Example response

{
  "url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e",
  "sha": "6dcb09b5b57875f334f61aebed695e2e4193db5e",
  "node_id": "MDY6Q29tbWl0NmRjYjA5YjViNTc4NzVmMzM0ZjYxYWViZWQ2OTVlMmU0MTkzZGI1ZQ==",
  "html_url": "https://github.com/octocat/Hello-World/commit/6dcb09b5b57875f334f61aebed695e2e4193db5e",
  "comments_url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e/comments",
  "commit": {
    "url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e",
    "author": {
      "name": "\"Chris Wanstrath\"",
      "email": "\"chris@ozmm.org\"",
      "date": "\"2007-10-29T02:42:39.000-07:00\""
    },
    "committer": {
      "name": "\"Chris Wanstrath\"",
      "email": "\"chris@ozmm.org\"",
      "date": "\"2007-10-29T02:42:39.000-07:00\""
    },
    "message": "Fix all the bugs",
    "tree": {
      "sha": "827efc6d56897b048c772eb4087f854f46256132",
      "url": "https://api.github.com/repos/octocat/Hello-World/tree/827efc6d56897b048c772eb4087f854f46256132"
    }
  },
  "author": {
    "login": "octocat",
    "id": 1,
    "node_id": "MDQ6VXNlcjE=",
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "41d064eb2195891e12d0413f63227ea7",
    "url": "https://api.github.com/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://api.github.com/users/octocat/followers",
    "following_url": "https://api.github.com/users/octocat/following{/other_user}",
    "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
    "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
    "organizations_url": "https://api.github.com/users/octocat/orgs",
    "repos_url": "https://api.github.com/users/octocat/repos",
    "events_url": "https://api.github.com/users/octocat/events{/privacy}",
    "received_events_url": "https://api.github.com/users/octocat/received_events",
    "type": "User",
    "starred_at": "\"2020-07-09T00:17:55Z\"",
    "user_view_type": "public"
  },
  "committer": {
    "login": "octocat",
    "id": 1,
    "node_id": "MDQ6VXNlcjE=",
    "avatar_url": "https://github.com/images/error/octocat_happy.gif",
    "gravatar_id": "41d064eb2195891e12d0413f63227ea7",
    "url": "https://api.github.com/users/octocat",
    "html_url": "https://github.com/octocat",
    "followers_url": "https://api.github.com/users/octocat/followers",
    "following_url": "https://api.github.com/users/octocat/following{/other_user}",
    "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
    "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
    "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
    "organizations_url": "https://api.github.com/users/octocat/orgs",
    "repos_url": "https://api.github.com/users/octocat/repos",
    "events_url": "https://api.github.com/users/octocat/events{/privacy}",
    "received_events_url": "https://api.github.com/users/octocat/received_events",
    "type": "User",
    "starred_at": "\"2020-07-09T00:17:55Z\"",
    "user_view_type": "public"
  },
  "parents": [
    {
      "sha": "7638417db6d59f3c431d3e1f261cc637155684cd",
      "url": "https://api.github.com/repos/octocat/Hello-World/commits/7638417db6d59f3c431d3e1f261cc637155684cd",
      "html_url": "https://github.com/octocat/Hello-World/commit/7638417db6d59f3c431d3e1f261cc637155684cd"
    }
  ],
  "files": [
    {
      "sha": "bbcd538c8e72b8c175046e27cc8f907076331401",
      "filename": "file1.txt",
      "status": "added",
      "additions": 103,
      "deletions": 21,
      "changes": 124,
      "blob_url": "https://github.com/octocat/Hello-World/blob/6dcb09b5b57875f334f61aebed695e2e4193db5e/file1.txt",
      "raw_url": "https://github.com/octocat/Hello-World/raw/6dcb09b5b57875f334f61aebed695e2e4193db5e/file1.txt",
      "contents_url": "https://api.github.com/repos/octocat/Hello-World/contents/file1.txt?ref=6dcb09b5b57875f334f61aebed695e2e4193db5e",
      "patch": "@@ -132,7 +132,7 @@ module Test @@ -1000,7 +1000,7 @@ module Test",
      "previous_filename": "file.txt"
    }
  ]
}