Creates a StackFrame object containing a structured stack trace.

Deseralize the given trace context from binary encoding. If the input is a Buffer of incorrect size or unexpected fields, then this function will return null.

Generates a trace context header value that can be used to follow the associated request through other Google services.

Returns the last parameter that is not null, undefined, or NaN.

Retrieves a package name from the full import path. For example: './node_modules/bar/index/foo.js' => 'bar'

Parse a cookie-style header string to extract traceId, spandId and options ex: '123456/667;o=3' -> {traceId: '123456', spanId: '667', options: '3'} note that we ignore trailing garbage if there is more than one '=' Returns null if traceId or spanId could not be found.

object with keys. null if there is a problem.

Serialize the given trace context into a Buffer.

Truncates the provided string to be at most length bytes after utf8 encoding and the appending of '...'. We produce the result by iterating over input characters to avoid truncating the string potentially producing partial unicode characters at the end.

Returns whether the Expect header is on the given options object. Assumes only that the header key is either capitalized, lowercase, or all-caps for simplicity purposes.

Transform a url to a request options.

From: https://github.com/nodejs/node/blob/v12.16.2/lib/internal/url.js#L1271-L1290

Get the previously created StackdriverTracer object.

An object exposing functions for creating custom spans.

Normalizes the user-provided configuration object by adding default values and overriding with env variables when they are provided.

A normalized configuration object.

Start the Stackdriver Trace Agent with the given configuration (if provided). This function should only be called once, and before any other modules are loaded.

An object exposing functions for creating custom spans.