(column)
return column
Unwrap proxied columns
Unwrap proxied columns
Unwrap proxied columns
def _base_column(column):
    """Unwrap proxied columns"""
    if column not in column.base_columns and len(column.base_columns) == 1:
        [base] = column.base_columns
        return base
    return column
def _base_column ( column ) : if column not in column . base_columns and len ( column . base_columns ) == 1 : [ base ] = column . base_columns return base return column