human
how to determine if a value is a string.
assistant
Here is a Python code to determine if a value is a string

import pandas as pd

def is_string(value):
        """
        Determine if a value is a string.
        """
        return isinstance(value, str)

# Enter the dataframe
df = pd.DataFrame({'age': [1, 2, 3], 'name': ['dahlia','airplane', 'bird']})

# Calling the function
print((is_string(df['age'])))

#Example Output

# False

#Remember to inspect code for bugs.