Removes a parent from a file.
Gets a specific parent reference.
Adds a parent folder for a file.
Lists a file's parents.
delete(fileId, parentId)
  Removes a parent from a file. Args: fileId: string, The ID of the file. (required) parentId: string, The ID of the parent. (required)
get(fileId, parentId)
  Gets a specific parent reference.
Args:
  fileId: string, The ID of the file. (required)
  parentId: string, The ID of the parent. (required)
Returns:
  An object of the form:
    { # A reference to a file's parent.
    "selfLink": "A String", # A link back to this reference.
    "kind": "drive#parentReference", # This is always drive#parentReference.
    "id": "A String", # The ID of the parent.
    "isRoot": True or False, # Whether or not the parent is the root folder.
    "parentLink": "A String", # A link to the parent.
  }
insert(fileId, body)
  Adds a parent folder for a file.
Args:
  fileId: string, The ID of the file. (required)
  body: object, The request body. (required)
    The object takes the form of:
{ # A reference to a file's parent.
  "selfLink": "A String", # A link back to this reference.
  "kind": "drive#parentReference", # This is always drive#parentReference.
  "id": "A String", # The ID of the parent.
  "isRoot": True or False, # Whether or not the parent is the root folder.
  "parentLink": "A String", # A link to the parent.
}
Returns:
  An object of the form:
    { # A reference to a file's parent.
    "selfLink": "A String", # A link back to this reference.
    "kind": "drive#parentReference", # This is always drive#parentReference.
    "id": "A String", # The ID of the parent.
    "isRoot": True or False, # Whether or not the parent is the root folder.
    "parentLink": "A String", # A link to the parent.
  }
list(fileId)
  Lists a file's parents.
Args:
  fileId: string, The ID of the file. (required)
Returns:
  An object of the form:
    { # A list of a file's parents.
    "items": [ # The actual list of parents.
      { # A reference to a file's parent.
        "selfLink": "A String", # A link back to this reference.
        "kind": "drive#parentReference", # This is always drive#parentReference.
        "id": "A String", # The ID of the parent.
        "isRoot": True or False, # Whether or not the parent is the root folder.
        "parentLink": "A String", # A link to the parent.
      },
    ],
    "kind": "drive#parentList", # This is always drive#parentList.
    "etag": "A String", # The ETag of the list.
    "selfLink": "A String", # A link back to this list.
  }