# Functions
NewGnostic initializes a structure to store global application state.
NewUsageError returns a new usage error with the specified message.
# Constants
SourceFormatDiscovery represents a Google Discovery document.
SourceFormatOpenAPI2 represents an OpenAPI v2 document.
SourceFormatOpenAPI3 represents an OpenAPI v3 document.
SourceFormatUnknown represents an unrecognized source format.
# Structs
The Gnostic structure holds global state information for gnostic.
UsageError is a response to invalid command-line inputs and should trigger display of usage (help) information.