method MemoryTable.prototype.addForeignKeyimport { MemoryTable } from "https://dotland.deno.dev/x/pg_mem@3.0.2/table.ts"; addForeignKey(cst: TableConstraintForeignKey, t: _Transaction): _IConstraint | nilParameterscst: TableConstraintForeignKeyt: _TransactionReturns_IConstraint | nil