Concept: Entity Resolution
==========================

TCode scripts are intended to be robust to change in labware, robot count, pipette tip brand, and various other factors that may change between fleets. As such, TCode scripts are written to operate on ``Descriptors`` (or minimal descriptions) of important entities. At runtime, these ``Descriptors`` are resolved to actual entities (e.g. labware, robots, etc.).

**Goals**:

- Describe how entity resolution works in TCode.
- Provide recipes for common entity resolution tasks.
  - Different pipette tip brands
  - Labware with non-standard well count, spacing, or offset (``GridDescriptor``)
  - Multiple robots
- Describe how to diagnose failing entity resolution.