Body of the thread's first comment.

A unique identifier for the client performing the mutation.

The line of the blob to which the thread refers, required for line-level
threads. The end of the line range for multi-line comments.

Path to the file being commented on.

The node ID of the pull request reviewing

The Node ID of the review to modify.

The side of the diff on which the line resides. For multi-line comments, this is the side for the end of the line range.

The first line of the range to which the comment refers.

The side of the diff on which the start line resides.

The level at which the comments in the corresponding thread are targeted, can be a diff line or a file