undo delete _from_bytes

Signed-off-by: martinvuyk <[email protected]>

stdlib/src/collections/string.mojo

@@ -1039,6 +1039,37 @@ struct String(
         write_args(output, args, sep=sep, end=end)
         return output^
 
+    @staticmethod
+    @always_inline
+    fn _from_bytes(owned buff: UnsafePointer[UInt8]) -> String:
+        """Construct a string from a sequence of bytes.
+
+        This does no validation that the given bytes are valid in any specific
+        String encoding.
+
+        Args:
+            buff: The buffer. This should have an existing terminator.
+        """
+
+        return String(ptr=buff, length=len(StringRef(ptr=buff)) + 1)
+
+    @staticmethod
+    fn _from_bytes(owned buff: Self._buffer_type) -> String:
+        """Construct a string from a sequence of bytes.
+
+        This does no validation that the given bytes are valid in any specific
+        String encoding.
+
+        Args:
+            buff: The buffer.
+        """
+
+        # If a terminator does not already exist, then add it.
+        if buff[-1]:
+            buff.append(0)
+
+        return String(buff^)
+
     # ===------------------------------------------------------------------=== #
     # Operator dunders
     # ===------------------------------------------------------------------=== #