diff --git a/src/text_table/_core.py b/src/text_table/_core.py
index e935f9e..973ad32 100644
--- a/src/text_table/_core.py
+++ b/src/text_table/_core.py
@@ -1,3 +1,5 @@
+from typing import Sequence
+
 __all__ = [
     'TableBorderCharset',
     'BORDER_THIN',
@@ -81,19 +83,18 @@ BORDER_ROUND = TableBorderCharset(
     '┼'
 )
 
-def _get_max_widths(data: dict) -> dict:
+def _get_max_widths(data: Sequence[dict]) -> dict:
     max_widths = {}
     for row in data:
         for col in row:
             max_widths[col] = max(len(str(row[col])), max_widths.get(col, 0))
     return max_widths
 
-def table(data: dict, *, borders: bool = False, border_charset: TableBorderCharset = BORDER_THIN, column_space: int = 1, uppercase_column_headers: bool = True) -> str:
+def table(data: Sequence[dict], *, borders: bool = False, border_charset: TableBorderCharset = BORDER_THIN, column_space: int = 1, uppercase_column_headers: bool = True) -> str:
     '''
     Creates a text table.
 
     :param data: The data.
-    :type data: dict
     :param borders: If True, the table will have borders, otherwise it will not have any borders.
     :type borders: bool
     :param border_charset: The charset for the borders.
@@ -130,7 +131,6 @@ def table(data: dict, *, borders: bool = False, border_charset: TableBorderChars
                 table += border_charset.line_vertical + ' '
     if borders:
         table_without_borders = table
-        table_width = max([len(r) for r in table_without_borders.split('\n')])
         table = border_charset.corner_top_left
         for col in columns:
             table += border_charset.line_horizontal * (column_widths[col] + 2)