[BUG]: PhysicalTable has no columns attribute

[gomesfernandes]

Description

In the PhysicalTable's class docstring, columns is listed as an attribute, but this property is not loaded when listing physical tables or initializing a PhysicalTable using its ID.

As a result, accessing the columns attribute results in the following error: AttributeError: 'PhysicalTable' object has no attribute 'columns'

Steps To Reproduce

List physical tables with the list_physical_tables function, or load a PhysicalTable directly with its ID.

Code Snippet

Requires a valid Connection object

from mstrio.modeling.schema.table import list_physical_tables, PhysicalTable

# using the listing function
physical_tables = list_physical_tables(connection)
physical_tables[0].columns


# using a valid ID
PhysicalTable(id=PHYSICAL_TABLE_ID, connection=connection).columns

Additional Context

The columns of a physical table are correctly retrieved when listing them indirectly via the logical tables.

from mstrio.modeling.schema.table import LogicalTable
LogicalTable(id=LOGICAL_TABLE_ID, connection=connection).physical_table.columns