docstr: Method to find the min value in a matrix
docstr_tok: ["Method","to","find","the","min","value","in","a","matrix"]
code: def return_min_value(matrix):
      """
      Method to find the min value in a matrix
  
      """
  
      min_value = (float("inf"), (0, 0))
      for i in range(len(matrix)):
          for j in range(i):
              if matrix[i][j] < min_value[0]:
                  min_value = (matrix[i][j], (i, j))
  
      return min_value
  
file_path: CaseRecommender/caserec/clustering/paco.py
imports: import itertools
  import random
  import numpy
  from scipy.spatial.distance import squareform, pdist
  from sklearn.cluster import KMeans
  from caserec.utils.process_data import ReadFile
label_desc: Use image node_id 7 for calling the PaCo obj's underlying member method code with example usage: obj.return_min_value(matrix) and returns: min_value