input: from typing import List
  
  def print_number_pyramid() -> None:
      """ Print a number pyramid pattern where each row i contains numbers from 1 to i.
      >>> print_number_pyramid()
      1
      12
      123
      1234
      12345
      """
      for i in range(1,6):
          for j in range(1,i+1):
              print(j, end="")
          print()
output:     for i in range(1,6):
          for j in range(1,i+1):
              print(j, end="")
          print()