Formatter of LocalDateTime to a string. You may initialize a formatter explicitly by using of method,
or implicitly by using ofPattern method. See DATE_TIME_COMPILERS for supported pattern characters. See
parsePattern for general pattern writing guidelines.
Number of sequential characters used in a pattern.
context
Context object.
returns
Compiled string.
Compiles value to a string based on number of sequential characters specified in length and compiler-dependent
context object which can be used, in particular, to specify language-specific textual strings.