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## http.h2_error
A type of error object that encapsulates HTTP 2 error information.
An `http.h2_error` object has fields:
- `name`: The error name: a short identifier for this error
- `code`: The error code
- `description`: The description of the error code
- `message`: An error message
- `traceback`: A traceback taken at the point the error was thrown
- `stream_error`: A boolean that indicates if this is a stream level or protocol level error
### `errors` <!-- --> {#http.h2_error.errors}
A table containing errors [as defined by the HTTP 2 specification](https://http2.github.io/http2-spec/#iana-errors).
It can be indexed by error name (e.g. `errors.PROTOCOL_ERROR`) or numeric code (e.g. `errors[0x1]`).
### `is(ob)` <!-- --> {#http.h2_error.is}
Returns a boolean indicating if the object `ob` is an `http.h2_error` object
### `h2_error:new(ob)` <!-- --> {#http.h2_error:new}
Creates a new error object from the passed table.
The table should have the form of an error object i.e. with fields `name`, `code`, `message`, `traceback`, etc.
Fields `name`, `code` and `description` are inherited from the parent `h2_error` object if not specified.
`stream_error` defaults to `false`.
### `h2_error:new_traceback(message, stream_error, lvl)` <!-- --> {#http.h2_error:new_traceback}
Creates a new error object, recording a traceback from the current thread.
### `h2_error:error(message, stream_error, lvl)` <!-- --> {#http.h2_error:error}
Creates and throws a new error.
### `h2_error:assert(cond, ...)` <!-- --> {#http.h2_error:assert}
If `cond` is truthy, returns `cond, ...`
If `cond` is falsy (i.e. `false` or `nil`), throws an error with the first element of `...` as the `message`.
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